Home / 26,478.15-36,539.97-15,147.78

Finding the Fourth Proportional to 26,478.15, 36,539.97 and 15,147.78

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Solution

The fourth proportional to 26,478.15, 36,539.97 and 15,147.78 is: 20,904.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478.15 : 36,539.97 = 15,147.78 : x
  2. Step 2: Convert to fraction form
    26,478.15/36,539.97 = 15,147.78/x
  3. Step 3: Cross multiply
    26,478.15x = 36,539.97 × 15,147.78
  4. Step 4: Simplify right side
    26,478.15x = 553,499,426.77
  5. Step 5: Solve for x
    x = 553,499,426.77/26,478.15
  6. Step 6: Final answer
    x = 20,904.01

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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.