Home / 28,451.24-42,702.68-14,421.03

Finding the Fourth Proportional to 28,451.24, 42,702.68 and 14,421.03

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Solution

The fourth proportional to 28,451.24, 42,702.68 and 14,421.03 is: 21,644.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.24 : 42,702.68 = 14,421.03 : x
  2. Step 2: Convert to fraction form
    28,451.24/42,702.68 = 14,421.03/x
  3. Step 3: Cross multiply
    28,451.24x = 42,702.68 × 14,421.03
  4. Step 4: Simplify right side
    28,451.24x = 615,816,629.36
  5. Step 5: Solve for x
    x = 615,816,629.36/28,451.24
  6. Step 6: Final answer
    x = 21,644.63

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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.