Home / 22,269.71-30,710.99-13,315.76

Finding the Fourth Proportional to 22,269.71, 30,710.99 and 13,315.76

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Solution

The fourth proportional to 22,269.71, 30,710.99 and 13,315.76 is: 18,363.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,269.71 : 30,710.99 = 13,315.76 : x
  2. Step 2: Convert to fraction form
    22,269.71/30,710.99 = 13,315.76/x
  3. Step 3: Cross multiply
    22,269.71x = 30,710.99 × 13,315.76
  4. Step 4: Simplify right side
    22,269.71x = 408,939,952.07
  5. Step 5: Solve for x
    x = 408,939,952.07/22,269.71
  6. Step 6: Final answer
    x = 18,363.06

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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.