Home / 34,107.78-51,149.20-13,037.40

Finding the Fourth Proportional to 34,107.78, 51,149.20 and 13,037.40

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Solution

The fourth proportional to 34,107.78, 51,149.20 and 13,037.40 is: 19,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,107.78 : 51,149.20 = 13,037.40 : x
  2. Step 2: Convert to fraction form
    34,107.78/51,149.20 = 13,037.40/x
  3. Step 3: Cross multiply
    34,107.78x = 51,149.20 × 13,037.40
  4. Step 4: Simplify right side
    34,107.78x = 666,852,547.49
  5. Step 5: Solve for x
    x = 666,852,547.49/34,107.78
  6. Step 6: Final answer
    x = 19,551.33

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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.