Home / 36,420.38-54,617.33-12,721.29

Finding the Fourth Proportional to 36,420.38, 54,617.33 and 12,721.29

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Solution

The fourth proportional to 36,420.38, 54,617.33 and 12,721.29 is: 19,077.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,420.38 : 54,617.33 = 12,721.29 : x
  2. Step 2: Convert to fraction form
    36,420.38/54,617.33 = 12,721.29/x
  3. Step 3: Cross multiply
    36,420.38x = 54,617.33 × 12,721.29
  4. Step 4: Simplify right side
    36,420.38x = 694,802,925.76
  5. Step 5: Solve for x
    x = 694,802,925.76/36,420.38
  6. Step 6: Final answer
    x = 19,077.31

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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.