Home / 21,045.36-29,053.11-13,090.14

Finding the Fourth Proportional to 21,045.36, 29,053.11 and 13,090.14

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Solution

The fourth proportional to 21,045.36, 29,053.11 and 13,090.14 is: 18,070.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.36 : 29,053.11 = 13,090.14 : x
  2. Step 2: Convert to fraction form
    21,045.36/29,053.11 = 13,090.14/x
  3. Step 3: Cross multiply
    21,045.36x = 29,053.11 × 13,090.14
  4. Step 4: Simplify right side
    21,045.36x = 380,309,277.34
  5. Step 5: Solve for x
    x = 380,309,277.34/21,045.36
  6. Step 6: Final answer
    x = 18,070.93

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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.