Home / 38,984.79-53,798.92-21,079.74

Finding the Fourth Proportional to 38,984.79, 53,798.92 and 21,079.74

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Solution

The fourth proportional to 38,984.79, 53,798.92 and 21,079.74 is: 29,089.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,984.79 : 53,798.92 = 21,079.74 : x
  2. Step 2: Convert to fraction form
    38,984.79/53,798.92 = 21,079.74/x
  3. Step 3: Cross multiply
    38,984.79x = 53,798.92 × 21,079.74
  4. Step 4: Simplify right side
    38,984.79x = 1,134,067,193.18
  5. Step 5: Solve for x
    x = 1,134,067,193.18/38,984.79
  6. Step 6: Final answer
    x = 29,089.99

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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.