Home / 27,785.39-38,343.74-15,038.62

Finding the Fourth Proportional to 27,785.39, 38,343.74 and 15,038.62

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Solution

The fourth proportional to 27,785.39, 38,343.74 and 15,038.62 is: 20,753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.39 : 38,343.74 = 15,038.62 : x
  2. Step 2: Convert to fraction form
    27,785.39/38,343.74 = 15,038.62/x
  3. Step 3: Cross multiply
    27,785.39x = 38,343.74 × 15,038.62
  4. Step 4: Simplify right side
    27,785.39x = 576,636,764.19
  5. Step 5: Solve for x
    x = 576,636,764.19/27,785.39
  6. Step 6: Final answer
    x = 20,753.24

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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.