Home / 32,731.12-45,173.16-19,981.63

Finding the Fourth Proportional to 32,731.12, 45,173.16 and 19,981.63

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Solution

The fourth proportional to 32,731.12, 45,173.16 and 19,981.63 is: 27,577.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,731.12 : 45,173.16 = 19,981.63 : x
  2. Step 2: Convert to fraction form
    32,731.12/45,173.16 = 19,981.63/x
  3. Step 3: Cross multiply
    32,731.12x = 45,173.16 × 19,981.63
  4. Step 4: Simplify right side
    32,731.12x = 902,633,369.05
  5. Step 5: Solve for x
    x = 902,633,369.05/32,731.12
  6. Step 6: Final answer
    x = 27,577.22

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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.