Home / 26,493.50-36,565.90-15,315.50

Finding the Fourth Proportional to 26,493.50, 36,565.90 and 15,315.50

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Solution

The fourth proportional to 26,493.50, 36,565.90 and 15,315.50 is: 21,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,493.50 : 36,565.90 = 15,315.50 : x
  2. Step 2: Convert to fraction form
    26,493.50/36,565.90 = 15,315.50/x
  3. Step 3: Cross multiply
    26,493.50x = 36,565.90 × 15,315.50
  4. Step 4: Simplify right side
    26,493.50x = 560,025,041.45
  5. Step 5: Solve for x
    x = 560,025,041.45/26,493.50
  6. Step 6: Final answer
    x = 21,138.21

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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.