Home / 25,607.80-38,346.90-18,998.20

Finding the Fourth Proportional to 25,607.80, 38,346.90 and 18,998.20

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Solution

The fourth proportional to 25,607.80, 38,346.90 and 18,998.20 is: 28,449.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,607.80 : 38,346.90 = 18,998.20 : x
  2. Step 2: Convert to fraction form
    25,607.80/38,346.90 = 18,998.20/x
  3. Step 3: Cross multiply
    25,607.80x = 38,346.90 × 18,998.20
  4. Step 4: Simplify right side
    25,607.80x = 728,522,075.58
  5. Step 5: Solve for x
    x = 728,522,075.58/25,607.80
  6. Step 6: Final answer
    x = 28,449.23

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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.