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Finding the Fourth Proportional to 40,402.40, 60,603.53 and 18,189.82

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Solution

The fourth proportional to 40,402.40, 60,603.53 and 18,189.82 is: 27,284.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,402.40 : 60,603.53 = 18,189.82 : x
  2. Step 2: Convert to fraction form
    40,402.40/60,603.53 = 18,189.82/x
  3. Step 3: Cross multiply
    40,402.40x = 60,603.53 × 18,189.82
  4. Step 4: Simplify right side
    40,402.40x = 1,102,367,211.12
  5. Step 5: Solve for x
    x = 1,102,367,211.12/40,402.40
  6. Step 6: Final answer
    x = 27,284.70

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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.