Home / 30,279.77-45,417.79-11,300.71

Finding the Fourth Proportional to 30,279.77, 45,417.79 and 11,300.71

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Solution

The fourth proportional to 30,279.77, 45,417.79 and 11,300.71 is: 16,950.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.77 : 45,417.79 = 11,300.71 : x
  2. Step 2: Convert to fraction form
    30,279.77/45,417.79 = 11,300.71/x
  3. Step 3: Cross multiply
    30,279.77x = 45,417.79 × 11,300.71
  4. Step 4: Simplify right side
    30,279.77x = 513,253,217.13
  5. Step 5: Solve for x
    x = 513,253,217.13/30,279.77
  6. Step 6: Final answer
    x = 16,950.37

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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.