Home / 21,292.60-31,943.70-6,502.20

Finding the Fourth Proportional to 21,292.60, 31,943.70 and 6,502.20

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Solution

The fourth proportional to 21,292.60, 31,943.70 and 6,502.20 is: 9,754.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.60 : 31,943.70 = 6,502.20 : x
  2. Step 2: Convert to fraction form
    21,292.60/31,943.70 = 6,502.20/x
  3. Step 3: Cross multiply
    21,292.60x = 31,943.70 × 6,502.20
  4. Step 4: Simplify right side
    21,292.60x = 207,704,326.14
  5. Step 5: Solve for x
    x = 207,704,326.14/21,292.60
  6. Step 6: Final answer
    x = 9,754.77

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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.