Home / 39,430.22-59,123.25-13,120.61

Finding the Fourth Proportional to 39,430.22, 59,123.25 and 13,120.61

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Solution

The fourth proportional to 39,430.22, 59,123.25 and 13,120.61 is: 19,673.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.22 : 59,123.25 = 13,120.61 : x
  2. Step 2: Convert to fraction form
    39,430.22/59,123.25 = 13,120.61/x
  3. Step 3: Cross multiply
    39,430.22x = 59,123.25 × 13,120.61
  4. Step 4: Simplify right side
    39,430.22x = 775,732,809.57
  5. Step 5: Solve for x
    x = 775,732,809.57/39,430.22
  6. Step 6: Final answer
    x = 19,673.56

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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.