Home / 29,071.56-40,131-19,652.88

Finding the Fourth Proportional to 29,071.56, 40,131 and 19,652.88

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Solution

The fourth proportional to 29,071.56, 40,131 and 19,652.88 is: 27,129.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,071.56 : 40,131 = 19,652.88 : x
  2. Step 2: Convert to fraction form
    29,071.56/40,131 = 19,652.88/x
  3. Step 3: Cross multiply
    29,071.56x = 40,131 × 19,652.88
  4. Step 4: Simplify right side
    29,071.56x = 788,689,727.28
  5. Step 5: Solve for x
    x = 788,689,727.28/29,071.56
  6. Step 6: Final answer
    x = 27,129.25

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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.