Home / 40,821.45-61,251-18,641.62

Finding the Fourth Proportional to 40,821.45, 61,251 and 18,641.62

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Solution

The fourth proportional to 40,821.45, 61,251 and 18,641.62 is: 27,971.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,821.45 : 61,251 = 18,641.62 : x
  2. Step 2: Convert to fraction form
    40,821.45/61,251 = 18,641.62/x
  3. Step 3: Cross multiply
    40,821.45x = 61,251 × 18,641.62
  4. Step 4: Simplify right side
    40,821.45x = 1,141,817,866.62
  5. Step 5: Solve for x
    x = 1,141,817,866.62/40,821.45
  6. Step 6: Final answer
    x = 27,971.03

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1.5x scale

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.