Home / 18,577.80-25,637.36-10,620.20

Finding the Fourth Proportional to 18,577.80, 25,637.36 and 10,620.20

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Solution

The fourth proportional to 18,577.80, 25,637.36 and 10,620.20 is: 14,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,577.80 : 25,637.36 = 10,620.20 : x
  2. Step 2: Convert to fraction form
    18,577.80/25,637.36 = 10,620.20/x
  3. Step 3: Cross multiply
    18,577.80x = 25,637.36 × 10,620.20
  4. Step 4: Simplify right side
    18,577.80x = 272,273,890.67
  5. Step 5: Solve for x
    x = 272,273,890.67/18,577.80
  6. Step 6: Final answer
    x = 14,655.87

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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.