Home / 28,326.60-42,490.02-8,605.32

Finding the Fourth Proportional to 28,326.60, 42,490.02 and 8,605.32

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Solution

The fourth proportional to 28,326.60, 42,490.02 and 8,605.32 is: 12,908.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326.60 : 42,490.02 = 8,605.32 : x
  2. Step 2: Convert to fraction form
    28,326.60/42,490.02 = 8,605.32/x
  3. Step 3: Cross multiply
    28,326.60x = 42,490.02 × 8,605.32
  4. Step 4: Simplify right side
    28,326.60x = 365,640,218.91
  5. Step 5: Solve for x
    x = 365,640,218.91/28,326.60
  6. Step 6: Final answer
    x = 12,908.02

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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.