Home / 21,952.47-30,294.50-12,392.45

Finding the Fourth Proportional to 21,952.47, 30,294.50 and 12,392.45

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Solution

The fourth proportional to 21,952.47, 30,294.50 and 12,392.45 is: 17,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,952.47 : 30,294.50 = 12,392.45 : x
  2. Step 2: Convert to fraction form
    21,952.47/30,294.50 = 12,392.45/x
  3. Step 3: Cross multiply
    21,952.47x = 30,294.50 × 12,392.45
  4. Step 4: Simplify right side
    21,952.47x = 375,423,076.53
  5. Step 5: Solve for x
    x = 375,423,076.53/21,952.47
  6. Step 6: Final answer
    x = 17,101.63

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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.