Home / 38,648.31-53,336.20-21,652.69

Finding the Fourth Proportional to 38,648.31, 53,336.20 and 21,652.69

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Solution

The fourth proportional to 38,648.31, 53,336.20 and 21,652.69 is: 29,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,648.31 : 53,336.20 = 21,652.69 : x
  2. Step 2: Convert to fraction form
    38,648.31/53,336.20 = 21,652.69/x
  3. Step 3: Cross multiply
    38,648.31x = 53,336.20 × 21,652.69
  4. Step 4: Simplify right side
    38,648.31x = 1,154,872,246.62
  5. Step 5: Solve for x
    x = 1,154,872,246.62/38,648.31
  6. Step 6: Final answer
    x = 29,881.57

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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.