Home / 28,325.52-39,090.33-15,750

Finding the Fourth Proportional to 28,325.52, 39,090.33 and 15,750

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Solution

The fourth proportional to 28,325.52, 39,090.33 and 15,750 is: 21,735.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.52 : 39,090.33 = 15,750 : x
  2. Step 2: Convert to fraction form
    28,325.52/39,090.33 = 15,750/x
  3. Step 3: Cross multiply
    28,325.52x = 39,090.33 × 15,750
  4. Step 4: Simplify right side
    28,325.52x = 615,672,697.50
  5. Step 5: Solve for x
    x = 615,672,697.50/28,325.52
  6. Step 6: Final answer
    x = 21,735.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.