Home / 28,512.30-42,703.65-14,645.10

Finding the Fourth Proportional to 28,512.30, 42,703.65 and 14,645.10

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Solution

The fourth proportional to 28,512.30, 42,703.65 and 14,645.10 is: 21,934.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512.30 : 42,703.65 = 14,645.10 : x
  2. Step 2: Convert to fraction form
    28,512.30/42,703.65 = 14,645.10/x
  3. Step 3: Cross multiply
    28,512.30x = 42,703.65 × 14,645.10
  4. Step 4: Simplify right side
    28,512.30x = 625,399,224.62
  5. Step 5: Solve for x
    x = 625,399,224.62/28,512.30
  6. Step 6: Final answer
    x = 21,934.37

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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.