Home / 38,984.66-53,798.78-21,079.62

Finding the Fourth Proportional to 38,984.66, 53,798.78 and 21,079.62

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Solution

The fourth proportional to 38,984.66, 53,798.78 and 21,079.62 is: 29,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,984.66 : 53,798.78 = 21,079.62 : x
  2. Step 2: Convert to fraction form
    38,984.66/53,798.78 = 21,079.62/x
  3. Step 3: Cross multiply
    38,984.66x = 53,798.78 × 21,079.62
  4. Step 4: Simplify right side
    38,984.66x = 1,134,057,838.86
  5. Step 5: Solve for x
    x = 1,134,057,838.86/38,984.66
  6. Step 6: Final answer
    x = 29,089.85

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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.