Home / 47,738.96-65,869.16-28,875.68

Finding the Fourth Proportional to 47,738.96, 65,869.16 and 28,875.68

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Solution

The fourth proportional to 47,738.96, 65,869.16 and 28,875.68 is: 39,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,738.96 : 65,869.16 = 28,875.68 : x
  2. Step 2: Convert to fraction form
    47,738.96/65,869.16 = 28,875.68/x
  3. Step 3: Cross multiply
    47,738.96x = 65,869.16 × 28,875.68
  4. Step 4: Simplify right side
    47,738.96x = 1,902,016,786.03
  5. Step 5: Solve for x
    x = 1,902,016,786.03/47,738.96
  6. Step 6: Final answer
    x = 39,842.02

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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.