Home / 29,142.72-40,236.48-19,077.12

Finding the Fourth Proportional to 29,142.72, 40,236.48 and 19,077.12

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Solution

The fourth proportional to 29,142.72, 40,236.48 and 19,077.12 is: 26,339.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,142.72 : 40,236.48 = 19,077.12 : x
  2. Step 2: Convert to fraction form
    29,142.72/40,236.48 = 19,077.12/x
  3. Step 3: Cross multiply
    29,142.72x = 40,236.48 × 19,077.12
  4. Step 4: Simplify right side
    29,142.72x = 767,596,157.34
  5. Step 5: Solve for x
    x = 767,596,157.34/29,142.72
  6. Step 6: Final answer
    x = 26,339.21

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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.