Home / 34,278.78-47,307.12-19,172.84

Finding the Fourth Proportional to 34,278.78, 47,307.12 and 19,172.84

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Solution

The fourth proportional to 34,278.78, 47,307.12 and 19,172.84 is: 26,459.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,278.78 : 47,307.12 = 19,172.84 : x
  2. Step 2: Convert to fraction form
    34,278.78/47,307.12 = 19,172.84/x
  3. Step 3: Cross multiply
    34,278.78x = 47,307.12 × 19,172.84
  4. Step 4: Simplify right side
    34,278.78x = 907,011,842.62
  5. Step 5: Solve for x
    x = 907,011,842.62/34,278.78
  6. Step 6: Final answer
    x = 26,459.86

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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.