Home / 31,522.90-43,492.98-21,952.08

Finding the Fourth Proportional to 31,522.90, 43,492.98 and 21,952.08

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Solution

The fourth proportional to 31,522.90, 43,492.98 and 21,952.08 is: 30,287.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,522.90 : 43,492.98 = 21,952.08 : x
  2. Step 2: Convert to fraction form
    31,522.90/43,492.98 = 21,952.08/x
  3. Step 3: Cross multiply
    31,522.90x = 43,492.98 × 21,952.08
  4. Step 4: Simplify right side
    31,522.90x = 954,761,376.40
  5. Step 5: Solve for x
    x = 954,761,376.40/31,522.90
  6. Step 6: Final answer
    x = 30,287.87

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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.