Home / 25,482.20-35,172.80-15,410.68

Finding the Fourth Proportional to 25,482.20, 35,172.80 and 15,410.68

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Solution

The fourth proportional to 25,482.20, 35,172.80 and 15,410.68 is: 21,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,482.20 : 35,172.80 = 15,410.68 : x
  2. Step 2: Convert to fraction form
    25,482.20/35,172.80 = 15,410.68/x
  3. Step 3: Cross multiply
    25,482.20x = 35,172.80 × 15,410.68
  4. Step 4: Simplify right side
    25,482.20x = 542,036,765.50
  5. Step 5: Solve for x
    x = 542,036,765.50/25,482.20
  6. Step 6: Final answer
    x = 21,271.19

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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.