Home / 42,472.29-63,709.88-11,307.57

Finding the Fourth Proportional to 42,472.29, 63,709.88 and 11,307.57

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Solution

The fourth proportional to 42,472.29, 63,709.88 and 11,307.57 is: 16,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,472.29 : 63,709.88 = 11,307.57 : x
  2. Step 2: Convert to fraction form
    42,472.29/63,709.88 = 11,307.57/x
  3. Step 3: Cross multiply
    42,472.29x = 63,709.88 × 11,307.57
  4. Step 4: Simplify right side
    42,472.29x = 720,403,927.79
  5. Step 5: Solve for x
    x = 720,403,927.79/42,472.29
  6. Step 6: Final answer
    x = 16,961.74

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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.