Home / 47,721.84-65,862.18-28,858.92

Finding the Fourth Proportional to 47,721.84, 65,862.18 and 28,858.92

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Solution

The fourth proportional to 47,721.84, 65,862.18 and 28,858.92 is: 39,828.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,721.84 : 65,862.18 = 28,858.92 : x
  2. Step 2: Convert to fraction form
    47,721.84/65,862.18 = 28,858.92/x
  3. Step 3: Cross multiply
    47,721.84x = 65,862.18 × 28,858.92
  4. Step 4: Simplify right side
    47,721.84x = 1,900,711,383.65
  5. Step 5: Solve for x
    x = 1,900,711,383.65/47,721.84
  6. Step 6: Final answer
    x = 39,828.96

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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.