Home / 19,445.80-29,168.70-19,330.60

Finding the Fourth Proportional to 19,445.80, 29,168.70 and 19,330.60

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Solution

The fourth proportional to 19,445.80, 29,168.70 and 19,330.60 is: 28,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,445.80 : 29,168.70 = 19,330.60 : x
  2. Step 2: Convert to fraction form
    19,445.80/29,168.70 = 19,330.60/x
  3. Step 3: Cross multiply
    19,445.80x = 29,168.70 × 19,330.60
  4. Step 4: Simplify right side
    19,445.80x = 563,848,472.22
  5. Step 5: Solve for x
    x = 563,848,472.22/19,445.80
  6. Step 6: Final answer
    x = 28,995.90

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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.