Home / 25,385.76-35,029.20-14,777.28

Finding the Fourth Proportional to 25,385.76, 35,029.20 and 14,777.28

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Solution

The fourth proportional to 25,385.76, 35,029.20 and 14,777.28 is: 20,390.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,385.76 : 35,029.20 = 14,777.28 : x
  2. Step 2: Convert to fraction form
    25,385.76/35,029.20 = 14,777.28/x
  3. Step 3: Cross multiply
    25,385.76x = 35,029.20 × 14,777.28
  4. Step 4: Simplify right side
    25,385.76x = 517,636,296.58
  5. Step 5: Solve for x
    x = 517,636,296.58/25,385.76
  6. Step 6: Final answer
    x = 20,390.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.