Home / 42,619.50-63,941.40-14,545.80

Finding the Fourth Proportional to 42,619.50, 63,941.40 and 14,545.80

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Solution

The fourth proportional to 42,619.50, 63,941.40 and 14,545.80 is: 21,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,619.50 : 63,941.40 = 14,545.80 : x
  2. Step 2: Convert to fraction form
    42,619.50/63,941.40 = 14,545.80/x
  3. Step 3: Cross multiply
    42,619.50x = 63,941.40 × 14,545.80
  4. Step 4: Simplify right side
    42,619.50x = 930,078,816.12
  5. Step 5: Solve for x
    x = 930,078,816.12/42,619.50
  6. Step 6: Final answer
    x = 21,822.85

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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.