Home / 21,275.93-29,356.33-12,322.90

Finding the Fourth Proportional to 21,275.93, 29,356.33 and 12,322.90

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Solution

The fourth proportional to 21,275.93, 29,356.33 and 12,322.90 is: 17,003.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.93 : 29,356.33 = 12,322.90 : x
  2. Step 2: Convert to fraction form
    21,275.93/29,356.33 = 12,322.90/x
  3. Step 3: Cross multiply
    21,275.93x = 29,356.33 × 12,322.90
  4. Step 4: Simplify right side
    21,275.93x = 361,754,982.82
  5. Step 5: Solve for x
    x = 361,754,982.82/21,275.93
  6. Step 6: Final answer
    x = 17,003.02

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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.