Home / 30,138.03-45,210.08-7,952.94

Finding the Fourth Proportional to 30,138.03, 45,210.08 and 7,952.94

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Solution

The fourth proportional to 30,138.03, 45,210.08 and 7,952.94 is: 11,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.03 : 45,210.08 = 7,952.94 : x
  2. Step 2: Convert to fraction form
    30,138.03/45,210.08 = 7,952.94/x
  3. Step 3: Cross multiply
    30,138.03x = 45,210.08 × 7,952.94
  4. Step 4: Simplify right side
    30,138.03x = 359,553,073.52
  5. Step 5: Solve for x
    x = 359,553,073.52/30,138.03
  6. Step 6: Final answer
    x = 11,930.21

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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.