Home / 28,290.60-42,442.56-8,569.32

Finding the Fourth Proportional to 28,290.60, 42,442.56 and 8,569.32

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Solution

The fourth proportional to 28,290.60, 42,442.56 and 8,569.32 is: 12,856.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.60 : 42,442.56 = 8,569.32 : x
  2. Step 2: Convert to fraction form
    28,290.60/42,442.56 = 8,569.32/x
  3. Step 3: Cross multiply
    28,290.60x = 42,442.56 × 8,569.32
  4. Step 4: Simplify right side
    28,290.60x = 363,703,878.26
  5. Step 5: Solve for x
    x = 363,703,878.26/28,290.60
  6. Step 6: Final answer
    x = 12,856.00

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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.