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Finding the Fourth Proportional to 16,864.80, 25,313.40 and 14,402.40

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Solution

The fourth proportional to 16,864.80, 25,313.40 and 14,402.40 is: 21,617.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,864.80 : 25,313.40 = 14,402.40 : x
  2. Step 2: Convert to fraction form
    16,864.80/25,313.40 = 14,402.40/x
  3. Step 3: Cross multiply
    16,864.80x = 25,313.40 × 14,402.40
  4. Step 4: Simplify right side
    16,864.80x = 364,573,712.16
  5. Step 5: Solve for x
    x = 364,573,712.16/16,864.80
  6. Step 6: Final answer
    x = 21,617.43

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1.5x scale

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.