Home / 28,493.47-39,318.92-15,746.50

Finding the Fourth Proportional to 28,493.47, 39,318.92 and 15,746.50

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Solution

The fourth proportional to 28,493.47, 39,318.92 and 15,746.50 is: 21,729.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,493.47 : 39,318.92 = 15,746.50 : x
  2. Step 2: Convert to fraction form
    28,493.47/39,318.92 = 15,746.50/x
  3. Step 3: Cross multiply
    28,493.47x = 39,318.92 × 15,746.50
  4. Step 4: Simplify right side
    28,493.47x = 619,135,177.19
  5. Step 5: Solve for x
    x = 619,135,177.19/28,493.47
  6. Step 6: Final answer
    x = 21,729.02

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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.