Home / 21,325.16-29,428.77-11,894.33

Finding the Fourth Proportional to 21,325.16, 29,428.77 and 11,894.33

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Solution

The fourth proportional to 21,325.16, 29,428.77 and 11,894.33 is: 16,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.16 : 29,428.77 = 11,894.33 : x
  2. Step 2: Convert to fraction form
    21,325.16/29,428.77 = 11,894.33/x
  3. Step 3: Cross multiply
    21,325.16x = 29,428.77 × 11,894.33
  4. Step 4: Simplify right side
    21,325.16x = 350,035,501.87
  5. Step 5: Solve for x
    x = 350,035,501.87/21,325.16
  6. Step 6: Final answer
    x = 16,414.20

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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.