Home / 22,218.49-30,661.99-13,264.32

Finding the Fourth Proportional to 22,218.49, 30,661.99 and 13,264.32

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Solution

The fourth proportional to 22,218.49, 30,661.99 and 13,264.32 is: 18,305.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.49 : 30,661.99 = 13,264.32 : x
  2. Step 2: Convert to fraction form
    22,218.49/30,661.99 = 13,264.32/x
  3. Step 3: Cross multiply
    22,218.49x = 30,661.99 × 13,264.32
  4. Step 4: Simplify right side
    22,218.49x = 406,710,344.92
  5. Step 5: Solve for x
    x = 406,710,344.92/22,218.49
  6. Step 6: Final answer
    x = 18,305.04

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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.