Home / 28,373.76-39,155.52-15,797.76

Finding the Fourth Proportional to 28,373.76, 39,155.52 and 15,797.76

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Solution

The fourth proportional to 28,373.76, 39,155.52 and 15,797.76 is: 21,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373.76 : 39,155.52 = 15,797.76 : x
  2. Step 2: Convert to fraction form
    28,373.76/39,155.52 = 15,797.76/x
  3. Step 3: Cross multiply
    28,373.76x = 39,155.52 × 15,797.76
  4. Step 4: Simplify right side
    28,373.76x = 618,569,507.64
  5. Step 5: Solve for x
    x = 618,569,507.64/28,373.76
  6. Step 6: Final answer
    x = 21,800.76

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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.