Home / 28,244.47-38,977.78-15,498.92

Finding the Fourth Proportional to 28,244.47, 38,977.78 and 15,498.92

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Solution

The fourth proportional to 28,244.47, 38,977.78 and 15,498.92 is: 21,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244.47 : 38,977.78 = 15,498.92 : x
  2. Step 2: Convert to fraction form
    28,244.47/38,977.78 = 15,498.92/x
  3. Step 3: Cross multiply
    28,244.47x = 38,977.78 × 15,498.92
  4. Step 4: Simplify right side
    28,244.47x = 604,113,299.11
  5. Step 5: Solve for x
    x = 604,113,299.11/28,244.47
  6. Step 6: Final answer
    x = 21,388.73

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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.