Home / 28,454.12-42,706.99-14,423.90

Finding the Fourth Proportional to 28,454.12, 42,706.99 and 14,423.90

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Solution

The fourth proportional to 28,454.12, 42,706.99 and 14,423.90 is: 21,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454.12 : 42,706.99 = 14,423.90 : x
  2. Step 2: Convert to fraction form
    28,454.12/42,706.99 = 14,423.90/x
  3. Step 3: Cross multiply
    28,454.12x = 42,706.99 × 14,423.90
  4. Step 4: Simplify right side
    28,454.12x = 616,001,353.06
  5. Step 5: Solve for x
    x = 616,001,353.06/28,454.12
  6. Step 6: Final answer
    x = 21,648.94

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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.