Home / 20,000.95-27,627.65-15,342.73

Finding the Fourth Proportional to 20,000.95, 27,627.65 and 15,342.73

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Solution

The fourth proportional to 20,000.95, 27,627.65 and 15,342.73 is: 21,193.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.95 : 27,627.65 = 15,342.73 : x
  2. Step 2: Convert to fraction form
    20,000.95/27,627.65 = 15,342.73/x
  3. Step 3: Cross multiply
    20,000.95x = 27,627.65 × 15,342.73
  4. Step 4: Simplify right side
    20,000.95x = 423,883,497.77
  5. Step 5: Solve for x
    x = 423,883,497.77/20,000.95
  6. Step 6: Final answer
    x = 21,193.17

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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.