Home / 29,686.72-40,944.48-19,077.28

Finding the Fourth Proportional to 29,686.72, 40,944.48 and 19,077.28

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Solution

The fourth proportional to 29,686.72, 40,944.48 and 19,077.28 is: 26,311.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,686.72 : 40,944.48 = 19,077.28 : x
  2. Step 2: Convert to fraction form
    29,686.72/40,944.48 = 19,077.28/x
  3. Step 3: Cross multiply
    29,686.72x = 40,944.48 × 19,077.28
  4. Step 4: Simplify right side
    29,686.72x = 781,109,309.41
  5. Step 5: Solve for x
    x = 781,109,309.41/29,686.72
  6. Step 6: Final answer
    x = 26,311.74

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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.