Home / 30,265.22-45,398.05-10,543.75

Finding the Fourth Proportional to 30,265.22, 45,398.05 and 10,543.75

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Solution

The fourth proportional to 30,265.22, 45,398.05 and 10,543.75 is: 15,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,265.22 : 45,398.05 = 10,543.75 : x
  2. Step 2: Convert to fraction form
    30,265.22/45,398.05 = 10,543.75/x
  3. Step 3: Cross multiply
    30,265.22x = 45,398.05 × 10,543.75
  4. Step 4: Simplify right side
    30,265.22x = 478,665,549.83
  5. Step 5: Solve for x
    x = 478,665,549.83/30,265.22
  6. Step 6: Final answer
    x = 15,815.70

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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.