Home / 39,834.64-54,973.79-21,929.46

Finding the Fourth Proportional to 39,834.64, 54,973.79 and 21,929.46

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Solution

The fourth proportional to 39,834.64, 54,973.79 and 21,929.46 is: 30,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,834.64 : 54,973.79 = 21,929.46 : x
  2. Step 2: Convert to fraction form
    39,834.64/54,973.79 = 21,929.46/x
  3. Step 3: Cross multiply
    39,834.64x = 54,973.79 × 21,929.46
  4. Step 4: Simplify right side
    39,834.64x = 1,205,545,528.85
  5. Step 5: Solve for x
    x = 1,205,545,528.85/39,834.64
  6. Step 6: Final answer
    x = 30,263.75

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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.