Home / 13,492.90-20,343.17-13,250.98

Finding the Fourth Proportional to 13,492.90, 20,343.17 and 13,250.98

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Solution

The fourth proportional to 13,492.90, 20,343.17 and 13,250.98 is: 19,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492.90 : 20,343.17 = 13,250.98 : x
  2. Step 2: Convert to fraction form
    13,492.90/20,343.17 = 13,250.98/x
  3. Step 3: Cross multiply
    13,492.90x = 20,343.17 × 13,250.98
  4. Step 4: Simplify right side
    13,492.90x = 269,566,938.81
  5. Step 5: Solve for x
    x = 269,566,938.81/13,492.90
  6. Step 6: Final answer
    x = 19,978.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.