Home / 39,738.09-59,641.74-21,031.56

Finding the Fourth Proportional to 39,738.09, 59,641.74 and 21,031.56

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Solution

The fourth proportional to 39,738.09, 59,641.74 and 21,031.56 is: 31,565.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,738.09 : 59,641.74 = 21,031.56 : x
  2. Step 2: Convert to fraction form
    39,738.09/59,641.74 = 21,031.56/x
  3. Step 3: Cross multiply
    39,738.09x = 59,641.74 × 21,031.56
  4. Step 4: Simplify right side
    39,738.09x = 1,254,358,833.31
  5. Step 5: Solve for x
    x = 1,254,358,833.31/39,738.09
  6. Step 6: Final answer
    x = 31,565.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.