Home / 28,245.24-38,977.11-15,498.14

Finding the Fourth Proportional to 28,245.24, 38,977.11 and 15,498.14

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Solution

The fourth proportional to 28,245.24, 38,977.11 and 15,498.14 is: 21,386.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.24 : 38,977.11 = 15,498.14 : x
  2. Step 2: Convert to fraction form
    28,245.24/38,977.11 = 15,498.14/x
  3. Step 3: Cross multiply
    28,245.24x = 38,977.11 × 15,498.14
  4. Step 4: Simplify right side
    28,245.24x = 604,072,512.69
  5. Step 5: Solve for x
    x = 604,072,512.69/28,245.24
  6. Step 6: Final answer
    x = 21,386.70

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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.