Home / 39,585.66-54,626.17-21,677.20

Finding the Fourth Proportional to 39,585.66, 54,626.17 and 21,677.20

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Solution

The fourth proportional to 39,585.66, 54,626.17 and 21,677.20 is: 29,913.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,585.66 : 54,626.17 = 21,677.20 : x
  2. Step 2: Convert to fraction form
    39,585.66/54,626.17 = 21,677.20/x
  3. Step 3: Cross multiply
    39,585.66x = 54,626.17 × 21,677.20
  4. Step 4: Simplify right side
    39,585.66x = 1,184,142,412.32
  5. Step 5: Solve for x
    x = 1,184,142,412.32/39,585.66
  6. Step 6: Final answer
    x = 29,913.42

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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.