Home / 28,501.11-42,714.50-15,338.03

Finding the Fourth Proportional to 28,501.11, 42,714.50 and 15,338.03

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Solution

The fourth proportional to 28,501.11, 42,714.50 and 15,338.03 is: 22,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.11 : 42,714.50 = 15,338.03 : x
  2. Step 2: Convert to fraction form
    28,501.11/42,714.50 = 15,338.03/x
  3. Step 3: Cross multiply
    28,501.11x = 42,714.50 × 15,338.03
  4. Step 4: Simplify right side
    28,501.11x = 655,155,992.17
  5. Step 5: Solve for x
    x = 655,155,992.17/28,501.11
  6. Step 6: Final answer
    x = 22,987.03

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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.