Home / 28,259.46-42,363.27-9,778.50

Finding the Fourth Proportional to 28,259.46, 42,363.27 and 9,778.50

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Solution

The fourth proportional to 28,259.46, 42,363.27 and 9,778.50 is: 14,658.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.46 : 42,363.27 = 9,778.50 : x
  2. Step 2: Convert to fraction form
    28,259.46/42,363.27 = 9,778.50/x
  3. Step 3: Cross multiply
    28,259.46x = 42,363.27 × 9,778.50
  4. Step 4: Simplify right side
    28,259.46x = 414,249,235.70
  5. Step 5: Solve for x
    x = 414,249,235.70/28,259.46
  6. Step 6: Final answer
    x = 14,658.78

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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.