Home / 47,257.07-65,212.20-28,158.48

Finding the Fourth Proportional to 47,257.07, 65,212.20 and 28,158.48

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Solution

The fourth proportional to 47,257.07, 65,212.20 and 28,158.48 is: 38,857.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,257.07 : 65,212.20 = 28,158.48 : x
  2. Step 2: Convert to fraction form
    47,257.07/65,212.20 = 28,158.48/x
  3. Step 3: Cross multiply
    47,257.07x = 65,212.20 × 28,158.48
  4. Step 4: Simplify right side
    47,257.07x = 1,836,276,429.46
  5. Step 5: Solve for x
    x = 1,836,276,429.46/47,257.07
  6. Step 6: Final answer
    x = 38,857.18

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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.