Home / 28,947.74-39,948.60-16,200.50

Finding the Fourth Proportional to 28,947.74, 39,948.60 and 16,200.50

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Solution

The fourth proportional to 28,947.74, 39,948.60 and 16,200.50 is: 22,357.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,947.74 : 39,948.60 = 16,200.50 : x
  2. Step 2: Convert to fraction form
    28,947.74/39,948.60 = 16,200.50/x
  3. Step 3: Cross multiply
    28,947.74x = 39,948.60 × 16,200.50
  4. Step 4: Simplify right side
    28,947.74x = 647,187,294.30
  5. Step 5: Solve for x
    x = 647,187,294.30/28,947.74
  6. Step 6: Final answer
    x = 22,357.09

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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.