Home / 21,325,032.76-29,428,525.10-11,535,454.36

Finding the Fourth Proportional to 21,325,032.76, 29,428,525.10 and 11,535,454.36

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Solution

The fourth proportional to 21,325,032.76, 29,428,525.10 and 11,535,454.36 is: 15,918,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325,032.76 : 29,428,525.10 = 11,535,454.36 : x
  2. Step 2: Convert to fraction form
    21,325,032.76/29,428,525.10 = 11,535,454.36/x
  3. Step 3: Cross multiply
    21,325,032.76x = 29,428,525.10 × 11,535,454.36
  4. Step 4: Simplify right side
    21,325,032.76x = 339,471,408,115,487.12
  5. Step 5: Solve for x
    x = 339,471,408,115,487.12/21,325,032.76
  6. Step 6: Final answer
    x = 15,918,916.14

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.