Home / 55,389.96-83,082.18-20,326.86

Finding the Fourth Proportional to 55,389.96, 83,082.18 and 20,326.86

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Solution

The fourth proportional to 55,389.96, 83,082.18 and 20,326.86 is: 30,489.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,389.96 : 83,082.18 = 20,326.86 : x
  2. Step 2: Convert to fraction form
    55,389.96/83,082.18 = 20,326.86/x
  3. Step 3: Cross multiply
    55,389.96x = 83,082.18 × 20,326.86
  4. Step 4: Simplify right side
    55,389.96x = 1,688,799,841.35
  5. Step 5: Solve for x
    x = 1,688,799,841.35/55,389.96
  6. Step 6: Final answer
    x = 30,489.28

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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.