Home / 55,486.25-83,237.66-20,423.24

Finding the Fourth Proportional to 55,486.25, 83,237.66 and 20,423.24

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Solution

The fourth proportional to 55,486.25, 83,237.66 and 20,423.24 is: 30,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,486.25 : 83,237.66 = 20,423.24 : x
  2. Step 2: Convert to fraction form
    55,486.25/83,237.66 = 20,423.24/x
  3. Step 3: Cross multiply
    55,486.25x = 83,237.66 × 20,423.24
  4. Step 4: Simplify right side
    55,486.25x = 1,699,982,188.91
  5. Step 5: Solve for x
    x = 1,699,982,188.91/55,486.25
  6. Step 6: Final answer
    x = 30,637.90

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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.