Home / 30,853.78-46,271.09-11,129.76

Finding the Fourth Proportional to 30,853.78, 46,271.09 and 11,129.76

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Solution

The fourth proportional to 30,853.78, 46,271.09 and 11,129.76 is: 16,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,853.78 : 46,271.09 = 11,129.76 : x
  2. Step 2: Convert to fraction form
    30,853.78/46,271.09 = 11,129.76/x
  3. Step 3: Cross multiply
    30,853.78x = 46,271.09 × 11,129.76
  4. Step 4: Simplify right side
    30,853.78x = 514,986,154.46
  5. Step 5: Solve for x
    x = 514,986,154.46/30,853.78
  6. Step 6: Final answer
    x = 16,691.19

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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.