Home / 30,452.02-42,020.85-19,117.90

Finding the Fourth Proportional to 30,452.02, 42,020.85 and 19,117.90

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Solution

The fourth proportional to 30,452.02, 42,020.85 and 19,117.90 is: 26,380.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,452.02 : 42,020.85 = 19,117.90 : x
  2. Step 2: Convert to fraction form
    30,452.02/42,020.85 = 19,117.90/x
  3. Step 3: Cross multiply
    30,452.02x = 42,020.85 × 19,117.90
  4. Step 4: Simplify right side
    30,452.02x = 803,350,408.22
  5. Step 5: Solve for x
    x = 803,350,408.22/30,452.02
  6. Step 6: Final answer
    x = 26,380.86

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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.