Home / 28,774.60-39,728.52-18,023.91

Finding the Fourth Proportional to 28,774.60, 39,728.52 and 18,023.91

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Solution

The fourth proportional to 28,774.60, 39,728.52 and 18,023.91 is: 24,885.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.60 : 39,728.52 = 18,023.91 : x
  2. Step 2: Convert to fraction form
    28,774.60/39,728.52 = 18,023.91/x
  3. Step 3: Cross multiply
    28,774.60x = 39,728.52 × 18,023.91
  4. Step 4: Simplify right side
    28,774.60x = 716,063,394.16
  5. Step 5: Solve for x
    x = 716,063,394.16/28,774.60
  6. Step 6: Final answer
    x = 24,885.26

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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.