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Finding the Fourth Proportional to 35,281, 52,921.50 and 10,657

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Solution

The fourth proportional to 35,281, 52,921.50 and 10,657 is: 15,985.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,281 : 52,921.50 = 10,657 : x
  2. Step 2: Convert to fraction form
    35,281/52,921.50 = 10,657/x
  3. Step 3: Cross multiply
    35,281x = 52,921.50 × 10,657
  4. Step 4: Simplify right side
    35,281x = 563,984,425.50
  5. Step 5: Solve for x
    x = 563,984,425.50/35,281
  6. Step 6: Final answer
    x = 15,985.50

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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.