Home / 28,538.70-42,823.24-10,781.48

Finding the Fourth Proportional to 28,538.70, 42,823.24 and 10,781.48

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Solution

The fourth proportional to 28,538.70, 42,823.24 and 10,781.48 is: 16,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.70 : 42,823.24 = 10,781.48 : x
  2. Step 2: Convert to fraction form
    28,538.70/42,823.24 = 10,781.48/x
  3. Step 3: Cross multiply
    28,538.70x = 42,823.24 × 10,781.48
  4. Step 4: Simplify right side
    28,538.70x = 461,697,905.60
  5. Step 5: Solve for x
    x = 461,697,905.60/28,538.70
  6. Step 6: Final answer
    x = 16,177.96

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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.