Home / 25,221.61-34,806.71-15,666.73

Finding the Fourth Proportional to 25,221.61, 34,806.71 and 15,666.73

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Solution

The fourth proportional to 25,221.61, 34,806.71 and 15,666.73 is: 21,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,221.61 : 34,806.71 = 15,666.73 : x
  2. Step 2: Convert to fraction form
    25,221.61/34,806.71 = 15,666.73/x
  3. Step 3: Cross multiply
    25,221.61x = 34,806.71 × 15,666.73
  4. Step 4: Simplify right side
    25,221.61x = 545,307,265.22
  5. Step 5: Solve for x
    x = 545,307,265.22/25,221.61
  6. Step 6: Final answer
    x = 21,620.64

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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.