Home / 27,637.13-38,139.51-15,062.15

Finding the Fourth Proportional to 27,637.13, 38,139.51 and 15,062.15

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Solution

The fourth proportional to 27,637.13, 38,139.51 and 15,062.15 is: 20,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,637.13 : 38,139.51 = 15,062.15 : x
  2. Step 2: Convert to fraction form
    27,637.13/38,139.51 = 15,062.15/x
  3. Step 3: Cross multiply
    27,637.13x = 38,139.51 × 15,062.15
  4. Step 4: Simplify right side
    27,637.13x = 574,462,829.85
  5. Step 5: Solve for x
    x = 574,462,829.85/27,637.13
  6. Step 6: Final answer
    x = 20,785.91

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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.