Home / 28,292.40-42,438.96-14,451.12

Finding the Fourth Proportional to 28,292.40, 42,438.96 and 14,451.12

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Solution

The fourth proportional to 28,292.40, 42,438.96 and 14,451.12 is: 21,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.40 : 42,438.96 = 14,451.12 : x
  2. Step 2: Convert to fraction form
    28,292.40/42,438.96 = 14,451.12/x
  3. Step 3: Cross multiply
    28,292.40x = 42,438.96 × 14,451.12
  4. Step 4: Simplify right side
    28,292.40x = 613,290,503.64
  5. Step 5: Solve for x
    x = 613,290,503.64/28,292.40
  6. Step 6: Final answer
    x = 21,676.86

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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.