Home / 28,117.12-42,177.48-10,352.56

Finding the Fourth Proportional to 28,117.12, 42,177.48 and 10,352.56

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Solution

The fourth proportional to 28,117.12, 42,177.48 and 10,352.56 is: 15,529.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.12 : 42,177.48 = 10,352.56 : x
  2. Step 2: Convert to fraction form
    28,117.12/42,177.48 = 10,352.56/x
  3. Step 3: Cross multiply
    28,117.12x = 42,177.48 × 10,352.56
  4. Step 4: Simplify right side
    28,117.12x = 436,644,892.35
  5. Step 5: Solve for x
    x = 436,644,892.35/28,117.12
  6. Step 6: Final answer
    x = 15,529.50

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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.