Home / 28,587.60-42,832.80-23,630.40

Finding the Fourth Proportional to 28,587.60, 42,832.80 and 23,630.40

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Solution

The fourth proportional to 28,587.60, 42,832.80 and 23,630.40 is: 35,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,587.60 : 42,832.80 = 23,630.40 : x
  2. Step 2: Convert to fraction form
    28,587.60/42,832.80 = 23,630.40/x
  3. Step 3: Cross multiply
    28,587.60x = 42,832.80 × 23,630.40
  4. Step 4: Simplify right side
    28,587.60x = 1,012,156,197.12
  5. Step 5: Solve for x
    x = 1,012,156,197.12/28,587.60
  6. Step 6: Final answer
    x = 35,405.43

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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.