Home / 39,612.33-54,666.35-21,707.18

Finding the Fourth Proportional to 39,612.33, 54,666.35 and 21,707.18

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Solution

The fourth proportional to 39,612.33, 54,666.35 and 21,707.18 is: 29,956.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,612.33 : 54,666.35 = 21,707.18 : x
  2. Step 2: Convert to fraction form
    39,612.33/54,666.35 = 21,707.18/x
  3. Step 3: Cross multiply
    39,612.33x = 54,666.35 × 21,707.18
  4. Step 4: Simplify right side
    39,612.33x = 1,186,652,122.52
  5. Step 5: Solve for x
    x = 1,186,652,122.52/39,612.33
  6. Step 6: Final answer
    x = 29,956.64

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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.