Home / 38,929.79-53,723.09-21,024.80

Finding the Fourth Proportional to 38,929.79, 53,723.09 and 21,024.80

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Solution

The fourth proportional to 38,929.79, 53,723.09 and 21,024.80 is: 29,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,929.79 : 53,723.09 = 21,024.80 : x
  2. Step 2: Convert to fraction form
    38,929.79/53,723.09 = 21,024.80/x
  3. Step 3: Cross multiply
    38,929.79x = 53,723.09 × 21,024.80
  4. Step 4: Simplify right side
    38,929.79x = 1,129,516,954.02
  5. Step 5: Solve for x
    x = 1,129,516,954.02/38,929.79
  6. Step 6: Final answer
    x = 29,014.21

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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.