Home / 27,785.12-38,343.15-15,038.01

Finding the Fourth Proportional to 27,785.12, 38,343.15 and 15,038.01

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Solution

The fourth proportional to 27,785.12, 38,343.15 and 15,038.01 is: 20,752.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.12 : 38,343.15 = 15,038.01 : x
  2. Step 2: Convert to fraction form
    27,785.12/38,343.15 = 15,038.01/x
  3. Step 3: Cross multiply
    27,785.12x = 38,343.15 × 15,038.01
  4. Step 4: Simplify right side
    27,785.12x = 576,604,673.13
  5. Step 5: Solve for x
    x = 576,604,673.13/27,785.12
  6. Step 6: Final answer
    x = 20,752.29

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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.