Home / 28,045.53-42,105.05-19,729.46

Finding the Fourth Proportional to 28,045.53, 42,105.05 and 19,729.46

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Solution

The fourth proportional to 28,045.53, 42,105.05 and 19,729.46 is: 29,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.53 : 42,105.05 = 19,729.46 : x
  2. Step 2: Convert to fraction form
    28,045.53/42,105.05 = 19,729.46/x
  3. Step 3: Cross multiply
    28,045.53x = 42,105.05 × 19,729.46
  4. Step 4: Simplify right side
    28,045.53x = 830,709,590.60
  5. Step 5: Solve for x
    x = 830,709,590.60/28,045.53
  6. Step 6: Final answer
    x = 29,620.04

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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.