Home / 28,603.60-39,473.96-15,856.64

Finding the Fourth Proportional to 28,603.60, 39,473.96 and 15,856.64

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Solution

The fourth proportional to 28,603.60, 39,473.96 and 15,856.64 is: 21,882.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,603.60 : 39,473.96 = 15,856.64 : x
  2. Step 2: Convert to fraction form
    28,603.60/39,473.96 = 15,856.64/x
  3. Step 3: Cross multiply
    28,603.60x = 39,473.96 × 15,856.64
  4. Step 4: Simplify right side
    28,603.60x = 625,924,373.09
  5. Step 5: Solve for x
    x = 625,924,373.09/28,603.60
  6. Step 6: Final answer
    x = 21,882.71

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1.5x scale

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.