Home / 28,255.64-42,366.65-9,531.07

Finding the Fourth Proportional to 28,255.64, 42,366.65 and 9,531.07

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Solution

The fourth proportional to 28,255.64, 42,366.65 and 9,531.07 is: 14,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.64 : 42,366.65 = 9,531.07 : x
  2. Step 2: Convert to fraction form
    28,255.64/42,366.65 = 9,531.07/x
  3. Step 3: Cross multiply
    28,255.64x = 42,366.65 × 9,531.07
  4. Step 4: Simplify right side
    28,255.64x = 403,799,353.24
  5. Step 5: Solve for x
    x = 403,799,353.24/28,255.64
  6. Step 6: Final answer
    x = 14,290.93

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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.