Home / 28,538.60-42,807.96-15,397.16

Finding the Fourth Proportional to 28,538.60, 42,807.96 and 15,397.16

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Solution

The fourth proportional to 28,538.60, 42,807.96 and 15,397.16 is: 23,095.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.60 : 42,807.96 = 15,397.16 : x
  2. Step 2: Convert to fraction form
    28,538.60/42,807.96 = 15,397.16/x
  3. Step 3: Cross multiply
    28,538.60x = 42,807.96 × 15,397.16
  4. Step 4: Simplify right side
    28,538.60x = 659,121,009.39
  5. Step 5: Solve for x
    x = 659,121,009.39/28,538.60
  6. Step 6: Final answer
    x = 23,095.77

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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.