Home / 18,210.42-27,288.90-10,402.02

Finding the Fourth Proportional to 18,210.42, 27,288.90 and 10,402.02

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Solution

The fourth proportional to 18,210.42, 27,288.90 and 10,402.02 is: 15,587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.42 : 27,288.90 = 10,402.02 : x
  2. Step 2: Convert to fraction form
    18,210.42/27,288.90 = 10,402.02/x
  3. Step 3: Cross multiply
    18,210.42x = 27,288.90 × 10,402.02
  4. Step 4: Simplify right side
    18,210.42x = 283,859,683.58
  5. Step 5: Solve for x
    x = 283,859,683.58/18,210.42
  6. Step 6: Final answer
    x = 15,587.76

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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.