Home / 31,365.32-43,269.70-20,029.14

Finding the Fourth Proportional to 31,365.32, 43,269.70 and 20,029.14

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Solution

The fourth proportional to 31,365.32, 43,269.70 and 20,029.14 is: 27,630.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,365.32 : 43,269.70 = 20,029.14 : x
  2. Step 2: Convert to fraction form
    31,365.32/43,269.70 = 20,029.14/x
  3. Step 3: Cross multiply
    31,365.32x = 43,269.70 × 20,029.14
  4. Step 4: Simplify right side
    31,365.32x = 866,654,688.51
  5. Step 5: Solve for x
    x = 866,654,688.51/31,365.32
  6. Step 6: Final answer
    x = 27,630.99

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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.