Home / 28,340.12-42,495.55-8,347.03

Finding the Fourth Proportional to 28,340.12, 42,495.55 and 8,347.03

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Solution

The fourth proportional to 28,340.12, 42,495.55 and 8,347.03 is: 12,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340.12 : 42,495.55 = 8,347.03 : x
  2. Step 2: Convert to fraction form
    28,340.12/42,495.55 = 8,347.03/x
  3. Step 3: Cross multiply
    28,340.12x = 42,495.55 × 8,347.03
  4. Step 4: Simplify right side
    28,340.12x = 354,711,503.61
  5. Step 5: Solve for x
    x = 354,711,503.61/28,340.12
  6. Step 6: Final answer
    x = 12,516.23

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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.