Home / 30,218.53-45,316.14-11,488.72

Finding the Fourth Proportional to 30,218.53, 45,316.14 and 11,488.72

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Solution

The fourth proportional to 30,218.53, 45,316.14 and 11,488.72 is: 17,228.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,218.53 : 45,316.14 = 11,488.72 : x
  2. Step 2: Convert to fraction form
    30,218.53/45,316.14 = 11,488.72/x
  3. Step 3: Cross multiply
    30,218.53x = 45,316.14 × 11,488.72
  4. Step 4: Simplify right side
    30,218.53x = 520,624,443.94
  5. Step 5: Solve for x
    x = 520,624,443.94/30,218.53
  6. Step 6: Final answer
    x = 17,228.65

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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.