Home / 40,887.40-61,352.70-18,704.20

Finding the Fourth Proportional to 40,887.40, 61,352.70 and 18,704.20

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Solution

The fourth proportional to 40,887.40, 61,352.70 and 18,704.20 is: 28,066.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,887.40 : 61,352.70 = 18,704.20 : x
  2. Step 2: Convert to fraction form
    40,887.40/61,352.70 = 18,704.20/x
  3. Step 3: Cross multiply
    40,887.40x = 61,352.70 × 18,704.20
  4. Step 4: Simplify right side
    40,887.40x = 1,147,553,171.34
  5. Step 5: Solve for x
    x = 1,147,553,171.34/40,887.40
  6. Step 6: Final answer
    x = 28,066.18

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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.