Home / 38,929.76-53,723.07-21,024.77

Finding the Fourth Proportional to 38,929.76, 53,723.07 and 21,024.77

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Solution

The fourth proportional to 38,929.76, 53,723.07 and 21,024.77 is: 29,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,929.76 : 53,723.07 = 21,024.77 : x
  2. Step 2: Convert to fraction form
    38,929.76/53,723.07 = 21,024.77/x
  3. Step 3: Cross multiply
    38,929.76x = 53,723.07 × 21,024.77
  4. Step 4: Simplify right side
    38,929.76x = 1,129,515,190.44
  5. Step 5: Solve for x
    x = 1,129,515,190.44/38,929.76
  6. Step 6: Final answer
    x = 29,014.18

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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.