Home / 28,306.46-42,459.80-8,585.19

Finding the Fourth Proportional to 28,306.46, 42,459.80 and 8,585.19

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Solution

The fourth proportional to 28,306.46, 42,459.80 and 8,585.19 is: 12,877.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.46 : 42,459.80 = 8,585.19 : x
  2. Step 2: Convert to fraction form
    28,306.46/42,459.80 = 8,585.19/x
  3. Step 3: Cross multiply
    28,306.46x = 42,459.80 × 8,585.19
  4. Step 4: Simplify right side
    28,306.46x = 364,525,407.44
  5. Step 5: Solve for x
    x = 364,525,407.44/28,306.46
  6. Step 6: Final answer
    x = 12,877.82

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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.