Home / 22,643.81-31,249.43-12,572.25

Finding the Fourth Proportional to 22,643.81, 31,249.43 and 12,572.25

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Solution

The fourth proportional to 22,643.81, 31,249.43 and 12,572.25 is: 17,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,643.81 : 31,249.43 = 12,572.25 : x
  2. Step 2: Convert to fraction form
    22,643.81/31,249.43 = 12,572.25/x
  3. Step 3: Cross multiply
    22,643.81x = 31,249.43 × 12,572.25
  4. Step 4: Simplify right side
    22,643.81x = 392,875,745.27
  5. Step 5: Solve for x
    x = 392,875,745.27/22,643.81
  6. Step 6: Final answer
    x = 17,350.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.