Home / 38,402.04-52,995.36-21,405.80

Finding the Fourth Proportional to 38,402.04, 52,995.36 and 21,405.80

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Solution

The fourth proportional to 38,402.04, 52,995.36 and 21,405.80 is: 29,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,402.04 : 52,995.36 = 21,405.80 : x
  2. Step 2: Convert to fraction form
    38,402.04/52,995.36 = 21,405.80/x
  3. Step 3: Cross multiply
    38,402.04x = 52,995.36 × 21,405.80
  4. Step 4: Simplify right side
    38,402.04x = 1,134,408,077.09
  5. Step 5: Solve for x
    x = 1,134,408,077.09/38,402.04
  6. Step 6: Final answer
    x = 29,540.31

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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.