Home / 39,281.45-54,207.50-21,376.49

Finding the Fourth Proportional to 39,281.45, 54,207.50 and 21,376.49

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Solution

The fourth proportional to 39,281.45, 54,207.50 and 21,376.49 is: 29,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281.45 : 54,207.50 = 21,376.49 : x
  2. Step 2: Convert to fraction form
    39,281.45/54,207.50 = 21,376.49/x
  3. Step 3: Cross multiply
    39,281.45x = 54,207.50 × 21,376.49
  4. Step 4: Simplify right side
    39,281.45x = 1,158,765,703.76
  5. Step 5: Solve for x
    x = 1,158,765,703.76/39,281.45
  6. Step 6: Final answer
    x = 29,499.06

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1.5x scale

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.