Home / 28,375.20-42,569.76-14,300.64

Finding the Fourth Proportional to 28,375.20, 42,569.76 and 14,300.64

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Solution

The fourth proportional to 28,375.20, 42,569.76 and 14,300.64 is: 21,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.20 : 42,569.76 = 14,300.64 : x
  2. Step 2: Convert to fraction form
    28,375.20/42,569.76 = 14,300.64/x
  3. Step 3: Cross multiply
    28,375.20x = 42,569.76 × 14,300.64
  4. Step 4: Simplify right side
    28,375.20x = 608,774,812.65
  5. Step 5: Solve for x
    x = 608,774,812.65/28,375.20
  6. Step 6: Final answer
    x = 21,454.47

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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.