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Finding the Fourth Proportional to 42,573, 63,888.84 and 14,871

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Solution

The fourth proportional to 42,573, 63,888.84 and 14,871 is: 22,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,573 : 63,888.84 = 14,871 : x
  2. Step 2: Convert to fraction form
    42,573/63,888.84 = 14,871/x
  3. Step 3: Cross multiply
    42,573x = 63,888.84 × 14,871
  4. Step 4: Simplify right side
    42,573x = 950,090,939.64
  5. Step 5: Solve for x
    x = 950,090,939.64/42,573
  6. Step 6: Final answer
    x = 22,316.75

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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.