Home / 30,107.76-45,145.05-10,370.04

Finding the Fourth Proportional to 30,107.76, 45,145.05 and 10,370.04

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Solution

The fourth proportional to 30,107.76, 45,145.05 and 10,370.04 is: 15,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,107.76 : 45,145.05 = 10,370.04 : x
  2. Step 2: Convert to fraction form
    30,107.76/45,145.05 = 10,370.04/x
  3. Step 3: Cross multiply
    30,107.76x = 45,145.05 × 10,370.04
  4. Step 4: Simplify right side
    30,107.76x = 468,155,974.30
  5. Step 5: Solve for x
    x = 468,155,974.30/30,107.76
  6. Step 6: Final answer
    x = 15,549.35

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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.