Home / 28,380.87-42,570.84-9,673.93

Finding the Fourth Proportional to 28,380.87, 42,570.84 and 9,673.93

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Solution

The fourth proportional to 28,380.87, 42,570.84 and 9,673.93 is: 14,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.87 : 42,570.84 = 9,673.93 : x
  2. Step 2: Convert to fraction form
    28,380.87/42,570.84 = 9,673.93/x
  3. Step 3: Cross multiply
    28,380.87x = 42,570.84 × 9,673.93
  4. Step 4: Simplify right side
    28,380.87x = 411,827,243.96
  5. Step 5: Solve for x
    x = 411,827,243.96/28,380.87
  6. Step 6: Final answer
    x = 14,510.73

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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.