Home / 22,330.95-30,806.85-13,830.81

Finding the Fourth Proportional to 22,330.95, 30,806.85 and 13,830.81

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Solution

The fourth proportional to 22,330.95, 30,806.85 and 13,830.81 is: 19,080.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,330.95 : 30,806.85 = 13,830.81 : x
  2. Step 2: Convert to fraction form
    22,330.95/30,806.85 = 13,830.81/x
  3. Step 3: Cross multiply
    22,330.95x = 30,806.85 × 13,830.81
  4. Step 4: Simplify right side
    22,330.95x = 426,083,689.05
  5. Step 5: Solve for x
    x = 426,083,689.05/22,330.95
  6. Step 6: Final answer
    x = 19,080.41

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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.