Home / 20,577.57-30,866.13-4,995.20

Finding the Fourth Proportional to 20,577.57, 30,866.13 and 4,995.20

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Solution

The fourth proportional to 20,577.57, 30,866.13 and 4,995.20 is: 7,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.57 : 30,866.13 = 4,995.20 : x
  2. Step 2: Convert to fraction form
    20,577.57/30,866.13 = 4,995.20/x
  3. Step 3: Cross multiply
    20,577.57x = 30,866.13 × 4,995.20
  4. Step 4: Simplify right side
    20,577.57x = 154,182,338.25
  5. Step 5: Solve for x
    x = 154,182,338.25/20,577.57
  6. Step 6: Final answer
    x = 7,492.74

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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.