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Finding the Fourth Proportional to 29,000.80, 40,019.76 and 16,424.80

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Solution

The fourth proportional to 29,000.80, 40,019.76 and 16,424.80 is: 22,665.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,000.80 : 40,019.76 = 16,424.80 : x
  2. Step 2: Convert to fraction form
    29,000.80/40,019.76 = 16,424.80/x
  3. Step 3: Cross multiply
    29,000.80x = 40,019.76 × 16,424.80
  4. Step 4: Simplify right side
    29,000.80x = 657,316,554.05
  5. Step 5: Solve for x
    x = 657,316,554.05/29,000.80
  6. Step 6: Final answer
    x = 22,665.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.