Home / 28,118.51-42,177.81-8,395.52

Finding the Fourth Proportional to 28,118.51, 42,177.81 and 8,395.52

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Solution

The fourth proportional to 28,118.51, 42,177.81 and 8,395.52 is: 12,593.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.51 : 42,177.81 = 8,395.52 : x
  2. Step 2: Convert to fraction form
    28,118.51/42,177.81 = 8,395.52/x
  3. Step 3: Cross multiply
    28,118.51x = 42,177.81 × 8,395.52
  4. Step 4: Simplify right side
    28,118.51x = 354,104,468.01
  5. Step 5: Solve for x
    x = 354,104,468.01/28,118.51
  6. Step 6: Final answer
    x = 12,593.29

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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.