Home / 27,637.70-38,139.98-15,062.45

Finding the Fourth Proportional to 27,637.70, 38,139.98 and 15,062.45

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Solution

The fourth proportional to 27,637.70, 38,139.98 and 15,062.45 is: 20,786.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,637.70 : 38,139.98 = 15,062.45 : x
  2. Step 2: Convert to fraction form
    27,637.70/38,139.98 = 15,062.45/x
  3. Step 3: Cross multiply
    27,637.70x = 38,139.98 × 15,062.45
  4. Step 4: Simplify right side
    27,637.70x = 574,481,275.74
  5. Step 5: Solve for x
    x = 574,481,275.74/27,637.70
  6. Step 6: Final answer
    x = 20,786.15

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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.