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Finding the Fourth Proportional to 18,015.83, 26,905.47 and 15,354.98

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Solution

The fourth proportional to 18,015.83, 26,905.47 and 15,354.98 is: 22,931.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.83 : 26,905.47 = 15,354.98 : x
  2. Step 2: Convert to fraction form
    18,015.83/26,905.47 = 15,354.98/x
  3. Step 3: Cross multiply
    18,015.83x = 26,905.47 × 15,354.98
  4. Step 4: Simplify right side
    18,015.83x = 413,132,862.53
  5. Step 5: Solve for x
    x = 413,132,862.53/18,015.83
  6. Step 6: Final answer
    x = 22,931.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.