Home / 38,984.87-53,799.09-21,079.87

Finding the Fourth Proportional to 38,984.87, 53,799.09 and 21,079.87

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Solution

The fourth proportional to 38,984.87, 53,799.09 and 21,079.87 is: 29,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,984.87 : 53,799.09 = 21,079.87 : x
  2. Step 2: Convert to fraction form
    38,984.87/53,799.09 = 21,079.87/x
  3. Step 3: Cross multiply
    38,984.87x = 53,799.09 × 21,079.87
  4. Step 4: Simplify right side
    38,984.87x = 1,134,077,823.32
  5. Step 5: Solve for x
    x = 1,134,077,823.32/38,984.87
  6. Step 6: Final answer
    x = 29,090.20

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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.