Home / 42,613.35-63,920.01-13,031.18

Finding the Fourth Proportional to 42,613.35, 63,920.01 and 13,031.18

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Solution

The fourth proportional to 42,613.35, 63,920.01 and 13,031.18 is: 19,546.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,613.35 : 63,920.01 = 13,031.18 : x
  2. Step 2: Convert to fraction form
    42,613.35/63,920.01 = 13,031.18/x
  3. Step 3: Cross multiply
    42,613.35x = 63,920.01 × 13,031.18
  4. Step 4: Simplify right side
    42,613.35x = 832,953,315.71
  5. Step 5: Solve for x
    x = 832,953,315.71/42,613.35
  6. Step 6: Final answer
    x = 19,546.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.