Home / 28,008.60-42,012.90-13,246.35

Finding the Fourth Proportional to 28,008.60, 42,012.90 and 13,246.35

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Solution

The fourth proportional to 28,008.60, 42,012.90 and 13,246.35 is: 19,869.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.60 : 42,012.90 = 13,246.35 : x
  2. Step 2: Convert to fraction form
    28,008.60/42,012.90 = 13,246.35/x
  3. Step 3: Cross multiply
    28,008.60x = 42,012.90 × 13,246.35
  4. Step 4: Simplify right side
    28,008.60x = 556,517,577.92
  5. Step 5: Solve for x
    x = 556,517,577.92/28,008.60
  6. Step 6: Final answer
    x = 19,869.53

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Similar ratio
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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.