Home / 31,746.48-43,817.40-20,549.04

Finding the Fourth Proportional to 31,746.48, 43,817.40 and 20,549.04

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Solution

The fourth proportional to 31,746.48, 43,817.40 and 20,549.04 is: 28,362.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,746.48 : 43,817.40 = 20,549.04 : x
  2. Step 2: Convert to fraction form
    31,746.48/43,817.40 = 20,549.04/x
  3. Step 3: Cross multiply
    31,746.48x = 43,817.40 × 20,549.04
  4. Step 4: Simplify right side
    31,746.48x = 900,405,505.30
  5. Step 5: Solve for x
    x = 900,405,505.30/31,746.48
  6. Step 6: Final answer
    x = 28,362.37

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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.