Home / 34,307.78-47,346.48-20,165.18

Finding the Fourth Proportional to 34,307.78, 47,346.48 and 20,165.18

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Solution

The fourth proportional to 34,307.78, 47,346.48 and 20,165.18 is: 27,828.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,307.78 : 47,346.48 = 20,165.18 : x
  2. Step 2: Convert to fraction form
    34,307.78/47,346.48 = 20,165.18/x
  3. Step 3: Cross multiply
    34,307.78x = 47,346.48 × 20,165.18
  4. Step 4: Simplify right side
    34,307.78x = 954,750,291.57
  5. Step 5: Solve for x
    x = 954,750,291.57/34,307.78
  6. Step 6: Final answer
    x = 27,828.97

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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.