Home / 39,312.30-54,238.71-22,315.68

Finding the Fourth Proportional to 39,312.30, 54,238.71 and 22,315.68

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Solution

The fourth proportional to 39,312.30, 54,238.71 and 22,315.68 is: 30,788.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312.30 : 54,238.71 = 22,315.68 : x
  2. Step 2: Convert to fraction form
    39,312.30/54,238.71 = 22,315.68/x
  3. Step 3: Cross multiply
    39,312.30x = 54,238.71 × 22,315.68
  4. Step 4: Simplify right side
    39,312.30x = 1,210,373,695.97
  5. Step 5: Solve for x
    x = 1,210,373,695.97/39,312.30
  6. Step 6: Final answer
    x = 30,788.68

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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.