Home / 28,070.60-42,114.28-8,349.80

Finding the Fourth Proportional to 28,070.60, 42,114.28 and 8,349.80

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Solution

The fourth proportional to 28,070.60, 42,114.28 and 8,349.80 is: 12,527.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.60 : 42,114.28 = 8,349.80 : x
  2. Step 2: Convert to fraction form
    28,070.60/42,114.28 = 8,349.80/x
  3. Step 3: Cross multiply
    28,070.60x = 42,114.28 × 8,349.80
  4. Step 4: Simplify right side
    28,070.60x = 351,645,815.14
  5. Step 5: Solve for x
    x = 351,645,815.14/28,070.60
  6. Step 6: Final answer
    x = 12,527.19

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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.