Home / 21,895.07-30,337.25-21,422.13

Finding the Fourth Proportional to 21,895.07, 30,337.25 and 21,422.13

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Solution

The fourth proportional to 21,895.07, 30,337.25 and 21,422.13 is: 29,681.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.07 : 30,337.25 = 21,422.13 : x
  2. Step 2: Convert to fraction form
    21,895.07/30,337.25 = 21,422.13/x
  3. Step 3: Cross multiply
    21,895.07x = 30,337.25 × 21,422.13
  4. Step 4: Simplify right side
    21,895.07x = 649,888,406.23
  5. Step 5: Solve for x
    x = 649,888,406.23/21,895.07
  6. Step 6: Final answer
    x = 29,681.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.