Home / 38,660.46-53,355.18-21,667.58

Finding the Fourth Proportional to 38,660.46, 53,355.18 and 21,667.58

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Solution

The fourth proportional to 38,660.46, 53,355.18 and 21,667.58 is: 29,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.46 : 53,355.18 = 21,667.58 : x
  2. Step 2: Convert to fraction form
    38,660.46/53,355.18 = 21,667.58/x
  3. Step 3: Cross multiply
    38,660.46x = 53,355.18 × 21,667.58
  4. Step 4: Simplify right side
    38,660.46x = 1,156,077,434.62
  5. Step 5: Solve for x
    x = 1,156,077,434.62/38,660.46
  6. Step 6: Final answer
    x = 29,903.35

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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.