Home / 19,938.30-29,907.45-16,657.80

Finding the Fourth Proportional to 19,938.30, 29,907.45 and 16,657.80

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Solution

The fourth proportional to 19,938.30, 29,907.45 and 16,657.80 is: 24,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.30 : 29,907.45 = 16,657.80 : x
  2. Step 2: Convert to fraction form
    19,938.30/29,907.45 = 16,657.80/x
  3. Step 3: Cross multiply
    19,938.30x = 29,907.45 × 16,657.80
  4. Step 4: Simplify right side
    19,938.30x = 498,192,320.61
  5. Step 5: Solve for x
    x = 498,192,320.61/19,938.30
  6. Step 6: Final answer
    x = 24,986.70

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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.