Home / 42,974.04-64,464.18-17,988.96

Finding the Fourth Proportional to 42,974.04, 64,464.18 and 17,988.96

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Solution

The fourth proportional to 42,974.04, 64,464.18 and 17,988.96 is: 26,984.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,974.04 : 64,464.18 = 17,988.96 : x
  2. Step 2: Convert to fraction form
    42,974.04/64,464.18 = 17,988.96/x
  3. Step 3: Cross multiply
    42,974.04x = 64,464.18 × 17,988.96
  4. Step 4: Simplify right side
    42,974.04x = 1,159,643,555.45
  5. Step 5: Solve for x
    x = 1,159,643,555.45/42,974.04
  6. Step 6: Final answer
    x = 26,984.75

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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.