Home / 27,785.27-38,343.72-15,038.46

Finding the Fourth Proportional to 27,785.27, 38,343.72 and 15,038.46

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Solution

The fourth proportional to 27,785.27, 38,343.72 and 15,038.46 is: 20,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.27 : 38,343.72 = 15,038.46 : x
  2. Step 2: Convert to fraction form
    27,785.27/38,343.72 = 15,038.46/x
  3. Step 3: Cross multiply
    27,785.27x = 38,343.72 × 15,038.46
  4. Step 4: Simplify right side
    27,785.27x = 576,630,499.47
  5. Step 5: Solve for x
    x = 576,630,499.47/27,785.27
  6. Step 6: Final answer
    x = 20,753.10

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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.