Home / 22,278.06-30,742.80-13,323.82

Finding the Fourth Proportional to 22,278.06, 30,742.80 and 13,323.82

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Solution

The fourth proportional to 22,278.06, 30,742.80 and 13,323.82 is: 18,386.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.06 : 30,742.80 = 13,323.82 : x
  2. Step 2: Convert to fraction form
    22,278.06/30,742.80 = 13,323.82/x
  3. Step 3: Cross multiply
    22,278.06x = 30,742.80 × 13,323.82
  4. Step 4: Simplify right side
    22,278.06x = 409,611,533.50
  5. Step 5: Solve for x
    x = 409,611,533.50/22,278.06
  6. Step 6: Final answer
    x = 18,386.32

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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.