Home / 21,721.80-32,585.52-6,139.82

Finding the Fourth Proportional to 21,721.80, 32,585.52 and 6,139.82

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Solution

The fourth proportional to 21,721.80, 32,585.52 and 6,139.82 is: 9,210.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,721.80 : 32,585.52 = 6,139.82 : x
  2. Step 2: Convert to fraction form
    21,721.80/32,585.52 = 6,139.82/x
  3. Step 3: Cross multiply
    21,721.80x = 32,585.52 × 6,139.82
  4. Step 4: Simplify right side
    21,721.80x = 200,069,227.41
  5. Step 5: Solve for x
    x = 200,069,227.41/21,721.80
  6. Step 6: Final answer
    x = 9,210.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.