Home / 19,922.10-29,818.35-15,515.70

Finding the Fourth Proportional to 19,922.10, 29,818.35 and 15,515.70

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Solution

The fourth proportional to 19,922.10, 29,818.35 and 15,515.70 is: 23,223.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.10 : 29,818.35 = 15,515.70 : x
  2. Step 2: Convert to fraction form
    19,922.10/29,818.35 = 15,515.70/x
  3. Step 3: Cross multiply
    19,922.10x = 29,818.35 × 15,515.70
  4. Step 4: Simplify right side
    19,922.10x = 462,652,573.10
  5. Step 5: Solve for x
    x = 462,652,573.10/19,922.10
  6. Step 6: Final answer
    x = 23,223.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.