Home / 22,281.63-30,748.64-13,329.51

Finding the Fourth Proportional to 22,281.63, 30,748.64 and 13,329.51

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Solution

The fourth proportional to 22,281.63, 30,748.64 and 13,329.51 is: 18,394.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,281.63 : 30,748.64 = 13,329.51 : x
  2. Step 2: Convert to fraction form
    22,281.63/30,748.64 = 13,329.51/x
  3. Step 3: Cross multiply
    22,281.63x = 30,748.64 × 13,329.51
  4. Step 4: Simplify right side
    22,281.63x = 409,864,183.95
  5. Step 5: Solve for x
    x = 409,864,183.95/22,281.63
  6. Step 6: Final answer
    x = 18,394.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.