Home / 28,320.63-42,422.61-16,605.60

Finding the Fourth Proportional to 28,320.63, 42,422.61 and 16,605.60

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Solution

The fourth proportional to 28,320.63, 42,422.61 and 16,605.60 is: 24,874.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.63 : 42,422.61 = 16,605.60 : x
  2. Step 2: Convert to fraction form
    28,320.63/42,422.61 = 16,605.60/x
  3. Step 3: Cross multiply
    28,320.63x = 42,422.61 × 16,605.60
  4. Step 4: Simplify right side
    28,320.63x = 704,452,680.50
  5. Step 5: Solve for x
    x = 704,452,680.50/28,320.63
  6. Step 6: Final answer
    x = 24,874.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.