Home / 28,362.80-42,560.40-10,845.20

Finding the Fourth Proportional to 28,362.80, 42,560.40 and 10,845.20

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Solution

The fourth proportional to 28,362.80, 42,560.40 and 10,845.20 is: 16,273.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.80 : 42,560.40 = 10,845.20 : x
  2. Step 2: Convert to fraction form
    28,362.80/42,560.40 = 10,845.20/x
  3. Step 3: Cross multiply
    28,362.80x = 42,560.40 × 10,845.20
  4. Step 4: Simplify right side
    28,362.80x = 461,576,050.08
  5. Step 5: Solve for x
    x = 461,576,050.08/28,362.80
  6. Step 6: Final answer
    x = 16,273.99

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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.