Home / 23,115.47-34,505.96-20,312.93

Finding the Fourth Proportional to 23,115.47, 34,505.96 and 20,312.93

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Solution

The fourth proportional to 23,115.47, 34,505.96 and 20,312.93 is: 30,322.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.47 : 34,505.96 = 20,312.93 : x
  2. Step 2: Convert to fraction form
    23,115.47/34,505.96 = 20,312.93/x
  3. Step 3: Cross multiply
    23,115.47x = 34,505.96 × 20,312.93
  4. Step 4: Simplify right side
    23,115.47x = 700,917,134.76
  5. Step 5: Solve for x
    x = 700,917,134.76/23,115.47
  6. Step 6: Final answer
    x = 30,322.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.