Home / 28,319.10-42,490.80-14,468.10

Finding the Fourth Proportional to 28,319.10, 42,490.80 and 14,468.10

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Solution

The fourth proportional to 28,319.10, 42,490.80 and 14,468.10 is: 21,708.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.10 : 42,490.80 = 14,468.10 : x
  2. Step 2: Convert to fraction form
    28,319.10/42,490.80 = 14,468.10/x
  3. Step 3: Cross multiply
    28,319.10x = 42,490.80 × 14,468.10
  4. Step 4: Simplify right side
    28,319.10x = 614,761,143.48
  5. Step 5: Solve for x
    x = 614,761,143.48/28,319.10
  6. Step 6: Final answer
    x = 21,708.36

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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.