Home / 30,490.24-42,292.12-29,681.44

Finding the Fourth Proportional to 30,490.24, 42,292.12 and 29,681.44

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Solution

The fourth proportional to 30,490.24, 42,292.12 and 29,681.44 is: 41,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490.24 : 42,292.12 = 29,681.44 : x
  2. Step 2: Convert to fraction form
    30,490.24/42,292.12 = 29,681.44/x
  3. Step 3: Cross multiply
    30,490.24x = 42,292.12 × 29,681.44
  4. Step 4: Simplify right side
    30,490.24x = 1,255,291,022.25
  5. Step 5: Solve for x
    x = 1,255,291,022.25/30,490.24
  6. Step 6: Final answer
    x = 41,170.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.