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Finding the Fourth Proportional to 18,001.79, 24,840 and 10,042.48

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Solution

The fourth proportional to 18,001.79, 24,840 and 10,042.48 is: 13,857.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.79 : 24,840 = 10,042.48 : x
  2. Step 2: Convert to fraction form
    18,001.79/24,840 = 10,042.48/x
  3. Step 3: Cross multiply
    18,001.79x = 24,840 × 10,042.48
  4. Step 4: Simplify right side
    18,001.79x = 249,455,079
  5. Step 5: Solve for x
    x = 249,455,079/18,001.79
  6. Step 6: Final answer
    x = 13,857.24

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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.