Home / 34,742.40-47,949.48-19,639.68

Finding the Fourth Proportional to 34,742.40, 47,949.48 and 19,639.68

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Solution

The fourth proportional to 34,742.40, 47,949.48 and 19,639.68 is: 27,105.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,742.40 : 47,949.48 = 19,639.68 : x
  2. Step 2: Convert to fraction form
    34,742.40/47,949.48 = 19,639.68/x
  3. Step 3: Cross multiply
    34,742.40x = 47,949.48 × 19,639.68
  4. Step 4: Simplify right side
    34,742.40x = 941,712,443.37
  5. Step 5: Solve for x
    x = 941,712,443.37/34,742.40
  6. Step 6: Final answer
    x = 27,105.57

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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.