Home / 39,282.25-54,209.05-21,376.95

Finding the Fourth Proportional to 39,282.25, 54,209.05 and 21,376.95

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Solution

The fourth proportional to 39,282.25, 54,209.05 and 21,376.95 is: 29,499.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,282.25 : 54,209.05 = 21,376.95 : x
  2. Step 2: Convert to fraction form
    39,282.25/54,209.05 = 21,376.95/x
  3. Step 3: Cross multiply
    39,282.25x = 54,209.05 × 21,376.95
  4. Step 4: Simplify right side
    39,282.25x = 1,158,824,151.40
  5. Step 5: Solve for x
    x = 1,158,824,151.40/39,282.25
  6. Step 6: Final answer
    x = 29,499.94

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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.