Home / 39,585.89-54,626.58-21,680.97

Finding the Fourth Proportional to 39,585.89, 54,626.58 and 21,680.97

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Solution

The fourth proportional to 39,585.89, 54,626.58 and 21,680.97 is: 29,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,585.89 : 54,626.58 = 21,680.97 : x
  2. Step 2: Convert to fraction form
    39,585.89/54,626.58 = 21,680.97/x
  3. Step 3: Cross multiply
    39,585.89x = 54,626.58 × 21,680.97
  4. Step 4: Simplify right side
    39,585.89x = 1,184,357,242.18
  5. Step 5: Solve for x
    x = 1,184,357,242.18/39,585.89
  6. Step 6: Final answer
    x = 29,918.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.