Home / 21,657.40-32,492.70-9,170.92

Finding the Fourth Proportional to 21,657.40, 32,492.70 and 9,170.92

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Solution

The fourth proportional to 21,657.40, 32,492.70 and 9,170.92 is: 13,759.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,657.40 : 32,492.70 = 9,170.92 : x
  2. Step 2: Convert to fraction form
    21,657.40/32,492.70 = 9,170.92/x
  3. Step 3: Cross multiply
    21,657.40x = 32,492.70 × 9,170.92
  4. Step 4: Simplify right side
    21,657.40x = 297,987,952.28
  5. Step 5: Solve for x
    x = 297,987,952.28/21,657.40
  6. Step 6: Final answer
    x = 13,759.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.