Home / 38,501.72-53,132.45-21,734.72

Finding the Fourth Proportional to 38,501.72, 53,132.45 and 21,734.72

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Solution

The fourth proportional to 38,501.72, 53,132.45 and 21,734.72 is: 29,993.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,501.72 : 53,132.45 = 21,734.72 : x
  2. Step 2: Convert to fraction form
    38,501.72/53,132.45 = 21,734.72/x
  3. Step 3: Cross multiply
    38,501.72x = 53,132.45 × 21,734.72
  4. Step 4: Simplify right side
    38,501.72x = 1,154,818,923.66
  5. Step 5: Solve for x
    x = 1,154,818,923.66/38,501.72
  6. Step 6: Final answer
    x = 29,993.96

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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.