Home / 39,187.34-54,077.04-21,281.96

Finding the Fourth Proportional to 39,187.34, 54,077.04 and 21,281.96

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Solution

The fourth proportional to 39,187.34, 54,077.04 and 21,281.96 is: 29,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187.34 : 54,077.04 = 21,281.96 : x
  2. Step 2: Convert to fraction form
    39,187.34/54,077.04 = 21,281.96/x
  3. Step 3: Cross multiply
    39,187.34x = 54,077.04 × 21,281.96
  4. Step 4: Simplify right side
    39,187.34x = 1,150,865,402.20
  5. Step 5: Solve for x
    x = 1,150,865,402.20/39,187.34
  6. Step 6: Final answer
    x = 29,368.30

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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.