Home / 38,395.47-52,986.28-21,399.24

Finding the Fourth Proportional to 38,395.47, 52,986.28 and 21,399.24

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Solution

The fourth proportional to 38,395.47, 52,986.28 and 21,399.24 is: 29,531.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,395.47 : 52,986.28 = 21,399.24 : x
  2. Step 2: Convert to fraction form
    38,395.47/52,986.28 = 21,399.24/x
  3. Step 3: Cross multiply
    38,395.47x = 52,986.28 × 21,399.24
  4. Step 4: Simplify right side
    38,395.47x = 1,133,866,308.39
  5. Step 5: Solve for x
    x = 1,133,866,308.39/38,395.47
  6. Step 6: Final answer
    x = 29,531.25

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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.