Home / 28,422.36-39,223.14-16,488.60

Finding the Fourth Proportional to 28,422.36, 39,223.14 and 16,488.60

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Solution

The fourth proportional to 28,422.36, 39,223.14 and 16,488.60 is: 22,754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422.36 : 39,223.14 = 16,488.60 : x
  2. Step 2: Convert to fraction form
    28,422.36/39,223.14 = 16,488.60/x
  3. Step 3: Cross multiply
    28,422.36x = 39,223.14 × 16,488.60
  4. Step 4: Simplify right side
    28,422.36x = 646,734,666.20
  5. Step 5: Solve for x
    x = 646,734,666.20/28,422.36
  6. Step 6: Final answer
    x = 22,754.43

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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.