Home / 22,297.95-30,779.19-15,219.36

Finding the Fourth Proportional to 22,297.95, 30,779.19 and 15,219.36

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Solution

The fourth proportional to 22,297.95, 30,779.19 and 15,219.36 is: 21,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,297.95 : 30,779.19 = 15,219.36 : x
  2. Step 2: Convert to fraction form
    22,297.95/30,779.19 = 15,219.36/x
  3. Step 3: Cross multiply
    22,297.95x = 30,779.19 × 15,219.36
  4. Step 4: Simplify right side
    22,297.95x = 468,439,573.12
  5. Step 5: Solve for x
    x = 468,439,573.12/22,297.95
  6. Step 6: Final answer
    x = 21,008.19

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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.