Home / 21,966.96-30,364.22-20,223.16

Finding the Fourth Proportional to 21,966.96, 30,364.22 and 20,223.16

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Solution

The fourth proportional to 21,966.96, 30,364.22 and 20,223.16 is: 27,953.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.96 : 30,364.22 = 20,223.16 : x
  2. Step 2: Convert to fraction form
    21,966.96/30,364.22 = 20,223.16/x
  3. Step 3: Cross multiply
    21,966.96x = 30,364.22 × 20,223.16
  4. Step 4: Simplify right side
    21,966.96x = 614,060,479.34
  5. Step 5: Solve for x
    x = 614,060,479.34/21,966.96
  6. Step 6: Final answer
    x = 27,953.82

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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.