Home / 40,708.73-61,071.80-12,628.17

Finding the Fourth Proportional to 40,708.73, 61,071.80 and 12,628.17

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Solution

The fourth proportional to 40,708.73, 61,071.80 and 12,628.17 is: 18,944.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,708.73 : 61,071.80 = 12,628.17 : x
  2. Step 2: Convert to fraction form
    40,708.73/61,071.80 = 12,628.17/x
  3. Step 3: Cross multiply
    40,708.73x = 61,071.80 × 12,628.17
  4. Step 4: Simplify right side
    40,708.73x = 771,225,009.47
  5. Step 5: Solve for x
    x = 771,225,009.47/40,708.73
  6. Step 6: Final answer
    x = 18,944.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.