Home / 42,531.48-63,806.77-12,951.65

Finding the Fourth Proportional to 42,531.48, 63,806.77 and 12,951.65

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Solution

The fourth proportional to 42,531.48, 63,806.77 and 12,951.65 is: 19,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,531.48 : 63,806.77 = 12,951.65 : x
  2. Step 2: Convert to fraction form
    42,531.48/63,806.77 = 12,951.65/x
  3. Step 3: Cross multiply
    42,531.48x = 63,806.77 × 12,951.65
  4. Step 4: Simplify right side
    42,531.48x = 826,402,952.67
  5. Step 5: Solve for x
    x = 826,402,952.67/42,531.48
  6. Step 6: Final answer
    x = 19,430.38

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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.