Home / 39,803.18-59,705.10-14,520.80

Finding the Fourth Proportional to 39,803.18, 59,705.10 and 14,520.80

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Solution

The fourth proportional to 39,803.18, 59,705.10 and 14,520.80 is: 21,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,803.18 : 59,705.10 = 14,520.80 : x
  2. Step 2: Convert to fraction form
    39,803.18/59,705.10 = 14,520.80/x
  3. Step 3: Cross multiply
    39,803.18x = 59,705.10 × 14,520.80
  4. Step 4: Simplify right side
    39,803.18x = 866,965,965.34
  5. Step 5: Solve for x
    x = 866,965,965.34/39,803.18
  6. Step 6: Final answer
    x = 21,781.32

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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.