Home / 28,056.40-42,084.30-8,335.12

Finding the Fourth Proportional to 28,056.40, 42,084.30 and 8,335.12

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Solution

The fourth proportional to 28,056.40, 42,084.30 and 8,335.12 is: 12,502.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.40 : 42,084.30 = 8,335.12 : x
  2. Step 2: Convert to fraction form
    28,056.40/42,084.30 = 8,335.12/x
  3. Step 3: Cross multiply
    28,056.40x = 42,084.30 × 8,335.12
  4. Step 4: Simplify right side
    28,056.40x = 350,777,690.62
  5. Step 5: Solve for x
    x = 350,777,690.62/28,056.40
  6. Step 6: Final answer
    x = 12,502.59

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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.