Home / 25,669.20-38,543.40-14,005.20

Finding the Fourth Proportional to 25,669.20, 38,543.40 and 14,005.20

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Solution

The fourth proportional to 25,669.20, 38,543.40 and 14,005.20 is: 21,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,669.20 : 38,543.40 = 14,005.20 : x
  2. Step 2: Convert to fraction form
    25,669.20/38,543.40 = 14,005.20/x
  3. Step 3: Cross multiply
    25,669.20x = 38,543.40 × 14,005.20
  4. Step 4: Simplify right side
    25,669.20x = 539,808,025.68
  5. Step 5: Solve for x
    x = 539,808,025.68/25,669.20
  6. Step 6: Final answer
    x = 21,029.41

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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.