Home / 18,890.28-28,298.43-14,486.18

Finding the Fourth Proportional to 18,890.28, 28,298.43 and 14,486.18

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Solution

The fourth proportional to 18,890.28, 28,298.43 and 14,486.18 is: 21,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.28 : 28,298.43 = 14,486.18 : x
  2. Step 2: Convert to fraction form
    18,890.28/28,298.43 = 14,486.18/x
  3. Step 3: Cross multiply
    18,890.28x = 28,298.43 × 14,486.18
  4. Step 4: Simplify right side
    18,890.28x = 409,936,009.21
  5. Step 5: Solve for x
    x = 409,936,009.21/18,890.28
  6. Step 6: Final answer
    x = 21,700.90

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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.