Home / 26,178.30-36,124.20-15,565.95

Finding the Fourth Proportional to 26,178.30, 36,124.20 and 15,565.95

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Solution

The fourth proportional to 26,178.30, 36,124.20 and 15,565.95 is: 21,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,178.30 : 36,124.20 = 15,565.95 : x
  2. Step 2: Convert to fraction form
    26,178.30/36,124.20 = 15,565.95/x
  3. Step 3: Cross multiply
    26,178.30x = 36,124.20 × 15,565.95
  4. Step 4: Simplify right side
    26,178.30x = 562,307,490.99
  5. Step 5: Solve for x
    x = 562,307,490.99/26,178.30
  6. Step 6: Final answer
    x = 21,479.91

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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.