Home / 39,834.11-54,973.05-21,928.92

Finding the Fourth Proportional to 39,834.11, 54,973.05 and 21,928.92

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Solution

The fourth proportional to 39,834.11, 54,973.05 and 21,928.92 is: 30,263.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,834.11 : 54,973.05 = 21,928.92 : x
  2. Step 2: Convert to fraction form
    39,834.11/54,973.05 = 21,928.92/x
  3. Step 3: Cross multiply
    39,834.11x = 54,973.05 × 21,928.92
  4. Step 4: Simplify right side
    39,834.11x = 1,205,499,615.61
  5. Step 5: Solve for x
    x = 1,205,499,615.61/39,834.11
  6. Step 6: Final answer
    x = 30,263.00

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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.