Home / 21,326.72-31,988.92-6,535.68

Finding the Fourth Proportional to 21,326.72, 31,988.92 and 6,535.68

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Solution

The fourth proportional to 21,326.72, 31,988.92 and 6,535.68 is: 9,803.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.72 : 31,988.92 = 6,535.68 : x
  2. Step 2: Convert to fraction form
    21,326.72/31,988.92 = 6,535.68/x
  3. Step 3: Cross multiply
    21,326.72x = 31,988.92 × 6,535.68
  4. Step 4: Simplify right side
    21,326.72x = 209,069,344.67
  5. Step 5: Solve for x
    x = 209,069,344.67/21,326.72
  6. Step 6: Final answer
    x = 9,803.16

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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.