Home / 32,730.87-45,172.82-19,981.38

Finding the Fourth Proportional to 32,730.87, 45,172.82 and 19,981.38

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Solution

The fourth proportional to 32,730.87, 45,172.82 and 19,981.38 is: 27,576.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,730.87 : 45,172.82 = 19,981.38 : x
  2. Step 2: Convert to fraction form
    32,730.87/45,172.82 = 19,981.38/x
  3. Step 3: Cross multiply
    32,730.87x = 45,172.82 × 19,981.38
  4. Step 4: Simplify right side
    32,730.87x = 902,615,182.18
  5. Step 5: Solve for x
    x = 902,615,182.18/32,730.87
  6. Step 6: Final answer
    x = 27,576.88

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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.