Home / 40,904.84-61,307.04-21,172.16

Finding the Fourth Proportional to 40,904.84, 61,307.04 and 21,172.16

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Solution

The fourth proportional to 40,904.84, 61,307.04 and 21,172.16 is: 31,732.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,904.84 : 61,307.04 = 21,172.16 : x
  2. Step 2: Convert to fraction form
    40,904.84/61,307.04 = 21,172.16/x
  3. Step 3: Cross multiply
    40,904.84x = 61,307.04 × 21,172.16
  4. Step 4: Simplify right side
    40,904.84x = 1,298,002,460.01
  5. Step 5: Solve for x
    x = 1,298,002,460.01/40,904.84
  6. Step 6: Final answer
    x = 31,732.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.