Home / 38,723.34-53,440.36-21,732.96

Finding the Fourth Proportional to 38,723.34, 53,440.36 and 21,732.96

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Solution

The fourth proportional to 38,723.34, 53,440.36 and 21,732.96 is: 29,992.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,723.34 : 53,440.36 = 21,732.96 : x
  2. Step 2: Convert to fraction form
    38,723.34/53,440.36 = 21,732.96/x
  3. Step 3: Cross multiply
    38,723.34x = 53,440.36 × 21,732.96
  4. Step 4: Simplify right side
    38,723.34x = 1,161,417,206.27
  5. Step 5: Solve for x
    x = 1,161,417,206.27/38,723.34
  6. Step 6: Final answer
    x = 29,992.69

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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.