Home / 42,505.48-63,758.33-20,313.81

Finding the Fourth Proportional to 42,505.48, 63,758.33 and 20,313.81

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Solution

The fourth proportional to 42,505.48, 63,758.33 and 20,313.81 is: 30,470.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,505.48 : 63,758.33 = 20,313.81 : x
  2. Step 2: Convert to fraction form
    42,505.48/63,758.33 = 20,313.81/x
  3. Step 3: Cross multiply
    42,505.48x = 63,758.33 × 20,313.81
  4. Step 4: Simplify right side
    42,505.48x = 1,295,174,576.15
  5. Step 5: Solve for x
    x = 1,295,174,576.15/42,505.48
  6. Step 6: Final answer
    x = 30,470.77

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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.