Home / 38,393.41-52,987.20-21,399.20

Finding the Fourth Proportional to 38,393.41, 52,987.20 and 21,399.20

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Solution

The fourth proportional to 38,393.41, 52,987.20 and 21,399.20 is: 29,533.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,393.41 : 52,987.20 = 21,399.20 : x
  2. Step 2: Convert to fraction form
    38,393.41/52,987.20 = 21,399.20/x
  3. Step 3: Cross multiply
    38,393.41x = 52,987.20 × 21,399.20
  4. Step 4: Simplify right side
    38,393.41x = 1,133,883,690.24
  5. Step 5: Solve for x
    x = 1,133,883,690.24/38,393.41
  6. Step 6: Final answer
    x = 29,533.29

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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.