Home / 20,577.90-28,367.76-13,492.02

Finding the Fourth Proportional to 20,577.90, 28,367.76 and 13,492.02

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Solution

The fourth proportional to 20,577.90, 28,367.76 and 13,492.02 is: 18,599.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.90 : 28,367.76 = 13,492.02 : x
  2. Step 2: Convert to fraction form
    20,577.90/28,367.76 = 13,492.02/x
  3. Step 3: Cross multiply
    20,577.90x = 28,367.76 × 13,492.02
  4. Step 4: Simplify right side
    20,577.90x = 382,738,385.28
  5. Step 5: Solve for x
    x = 382,738,385.28/20,577.90
  6. Step 6: Final answer
    x = 18,599.49

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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.