Home / 28,163.10-42,242.49-7,386.06

Finding the Fourth Proportional to 28,163.10, 42,242.49 and 7,386.06

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Solution

The fourth proportional to 28,163.10, 42,242.49 and 7,386.06 is: 11,078.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163.10 : 42,242.49 = 7,386.06 : x
  2. Step 2: Convert to fraction form
    28,163.10/42,242.49 = 7,386.06/x
  3. Step 3: Cross multiply
    28,163.10x = 42,242.49 × 7,386.06
  4. Step 4: Simplify right side
    28,163.10x = 312,005,565.69
  5. Step 5: Solve for x
    x = 312,005,565.69/28,163.10
  6. Step 6: Final answer
    x = 11,078.52

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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.