Home / 27,128.20-40,688.40-10,496.08

Finding the Fourth Proportional to 27,128.20, 40,688.40 and 10,496.08

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Solution

The fourth proportional to 27,128.20, 40,688.40 and 10,496.08 is: 15,742.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.20 : 40,688.40 = 10,496.08 : x
  2. Step 2: Convert to fraction form
    27,128.20/40,688.40 = 10,496.08/x
  3. Step 3: Cross multiply
    27,128.20x = 40,688.40 × 10,496.08
  4. Step 4: Simplify right side
    27,128.20x = 427,068,701.47
  5. Step 5: Solve for x
    x = 427,068,701.47/27,128.20
  6. Step 6: Final answer
    x = 15,742.61

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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.