Home / 39,828.92-54,962.15-21,925.08

Finding the Fourth Proportional to 39,828.92, 54,962.15 and 21,925.08

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Solution

The fourth proportional to 39,828.92, 54,962.15 and 21,925.08 is: 30,255.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,828.92 : 54,962.15 = 21,925.08 : x
  2. Step 2: Convert to fraction form
    39,828.92/54,962.15 = 21,925.08/x
  3. Step 3: Cross multiply
    39,828.92x = 54,962.15 × 21,925.08
  4. Step 4: Simplify right side
    39,828.92x = 1,205,049,426.10
  5. Step 5: Solve for x
    x = 1,205,049,426.10/39,828.92
  6. Step 6: Final answer
    x = 30,255.64

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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.