Home / 28,484.28-42,630.30-20,329.24

Finding the Fourth Proportional to 28,484.28, 42,630.30 and 20,329.24

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Solution

The fourth proportional to 28,484.28, 42,630.30 and 20,329.24 is: 30,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,484.28 : 42,630.30 = 20,329.24 : x
  2. Step 2: Convert to fraction form
    28,484.28/42,630.30 = 20,329.24/x
  3. Step 3: Cross multiply
    28,484.28x = 42,630.30 × 20,329.24
  4. Step 4: Simplify right side
    28,484.28x = 866,641,599.97
  5. Step 5: Solve for x
    x = 866,641,599.97/28,484.28
  6. Step 6: Final answer
    x = 30,425.26

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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.