Home / 25,385.10-38,077.65-18,824.10

Finding the Fourth Proportional to 25,385.10, 38,077.65 and 18,824.10

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Solution

The fourth proportional to 25,385.10, 38,077.65 and 18,824.10 is: 28,236.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,385.10 : 38,077.65 = 18,824.10 : x
  2. Step 2: Convert to fraction form
    25,385.10/38,077.65 = 18,824.10/x
  3. Step 3: Cross multiply
    25,385.10x = 38,077.65 × 18,824.10
  4. Step 4: Simplify right side
    25,385.10x = 716,777,491.37
  5. Step 5: Solve for x
    x = 716,777,491.37/25,385.10
  6. Step 6: Final answer
    x = 28,236.15

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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.