Home / 23,128.58-31,909.61-15,058.55

Finding the Fourth Proportional to 23,128.58, 31,909.61 and 15,058.55

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Solution

The fourth proportional to 23,128.58, 31,909.61 and 15,058.55 is: 20,775.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.58 : 31,909.61 = 15,058.55 : x
  2. Step 2: Convert to fraction form
    23,128.58/31,909.61 = 15,058.55/x
  3. Step 3: Cross multiply
    23,128.58x = 31,909.61 × 15,058.55
  4. Step 4: Simplify right side
    23,128.58x = 480,512,575.09
  5. Step 5: Solve for x
    x = 480,512,575.09/23,128.58
  6. Step 6: Final answer
    x = 20,775.70

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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.