Home / 28,419.04-42,635.04-8,700.40

Finding the Fourth Proportional to 28,419.04, 42,635.04 and 8,700.40

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Solution

The fourth proportional to 28,419.04, 42,635.04 and 8,700.40 is: 13,052.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,419.04 : 42,635.04 = 8,700.40 : x
  2. Step 2: Convert to fraction form
    28,419.04/42,635.04 = 8,700.40/x
  3. Step 3: Cross multiply
    28,419.04x = 42,635.04 × 8,700.40
  4. Step 4: Simplify right side
    28,419.04x = 370,941,902.02
  5. Step 5: Solve for x
    x = 370,941,902.02/28,419.04
  6. Step 6: Final answer
    x = 13,052.58

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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.