Home / 19,428.04-29,138.97-6,945.74

Finding the Fourth Proportional to 19,428.04, 29,138.97 and 6,945.74

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Solution

The fourth proportional to 19,428.04, 29,138.97 and 6,945.74 is: 10,417.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.04 : 29,138.97 = 6,945.74 : x
  2. Step 2: Convert to fraction form
    19,428.04/29,138.97 = 6,945.74/x
  3. Step 3: Cross multiply
    19,428.04x = 29,138.97 × 6,945.74
  4. Step 4: Simplify right side
    19,428.04x = 202,391,709.49
  5. Step 5: Solve for x
    x = 202,391,709.49/19,428.04
  6. Step 6: Final answer
    x = 10,417.51

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1.5x scale

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.