Home / 28,352.22-39,130.92-16,422.90

Finding the Fourth Proportional to 28,352.22, 39,130.92 and 16,422.90

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Solution

The fourth proportional to 28,352.22, 39,130.92 and 16,422.90 is: 22,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352.22 : 39,130.92 = 16,422.90 : x
  2. Step 2: Convert to fraction form
    28,352.22/39,130.92 = 16,422.90/x
  3. Step 3: Cross multiply
    28,352.22x = 39,130.92 × 16,422.90
  4. Step 4: Simplify right side
    28,352.22x = 642,643,186.07
  5. Step 5: Solve for x
    x = 642,643,186.07/28,352.22
  6. Step 6: Final answer
    x = 22,666.42

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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.