Home / 22,118.86-30,554.99-15,401.13

Finding the Fourth Proportional to 22,118.86, 30,554.99 and 15,401.13

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Solution

The fourth proportional to 22,118.86, 30,554.99 and 15,401.13 is: 21,275.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,118.86 : 30,554.99 = 15,401.13 : x
  2. Step 2: Convert to fraction form
    22,118.86/30,554.99 = 15,401.13/x
  3. Step 3: Cross multiply
    22,118.86x = 30,554.99 × 15,401.13
  4. Step 4: Simplify right side
    22,118.86x = 470,581,373.14
  5. Step 5: Solve for x
    x = 470,581,373.14/22,118.86
  6. Step 6: Final answer
    x = 21,275.12

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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.