Home / 29,316.60-40,454.91-18,705.06

Finding the Fourth Proportional to 29,316.60, 40,454.91 and 18,705.06

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Solution

The fourth proportional to 29,316.60, 40,454.91 and 18,705.06 is: 25,811.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,316.60 : 40,454.91 = 18,705.06 : x
  2. Step 2: Convert to fraction form
    29,316.60/40,454.91 = 18,705.06/x
  3. Step 3: Cross multiply
    29,316.60x = 40,454.91 × 18,705.06
  4. Step 4: Simplify right side
    29,316.60x = 756,711,518.84
  5. Step 5: Solve for x
    x = 756,711,518.84/29,316.60
  6. Step 6: Final answer
    x = 25,811.71

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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.