Home / 21,425.51-32,139.76-6,632.48

Finding the Fourth Proportional to 21,425.51, 32,139.76 and 6,632.48

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Solution

The fourth proportional to 21,425.51, 32,139.76 and 6,632.48 is: 9,949.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.51 : 32,139.76 = 6,632.48 : x
  2. Step 2: Convert to fraction form
    21,425.51/32,139.76 = 6,632.48/x
  3. Step 3: Cross multiply
    21,425.51x = 32,139.76 × 6,632.48
  4. Step 4: Simplify right side
    21,425.51x = 213,166,138.12
  5. Step 5: Solve for x
    x = 213,166,138.12/21,425.51
  6. Step 6: Final answer
    x = 9,949.18

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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.