Home / 29,321.51-40,400.30-19,873.67

Finding the Fourth Proportional to 29,321.51, 40,400.30 and 19,873.67

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Solution

The fourth proportional to 29,321.51, 40,400.30 and 19,873.67 is: 27,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,321.51 : 40,400.30 = 19,873.67 : x
  2. Step 2: Convert to fraction form
    29,321.51/40,400.30 = 19,873.67/x
  3. Step 3: Cross multiply
    29,321.51x = 40,400.30 × 19,873.67
  4. Step 4: Simplify right side
    29,321.51x = 802,902,077.78
  5. Step 5: Solve for x
    x = 802,902,077.78/29,321.51
  6. Step 6: Final answer
    x = 27,382.70

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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.