Home / 23,187.47-31,998.65-12,577.28

Finding the Fourth Proportional to 23,187.47, 31,998.65 and 12,577.28

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Solution

The fourth proportional to 23,187.47, 31,998.65 and 12,577.28 is: 17,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,187.47 : 31,998.65 = 12,577.28 : x
  2. Step 2: Convert to fraction form
    23,187.47/31,998.65 = 12,577.28/x
  3. Step 3: Cross multiply
    23,187.47x = 31,998.65 × 12,577.28
  4. Step 4: Simplify right side
    23,187.47x = 402,455,757.79
  5. Step 5: Solve for x
    x = 402,455,757.79/23,187.47
  6. Step 6: Final answer
    x = 17,356.61

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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.