Home / 27,115.81-40,685.36-10,487.51

Finding the Fourth Proportional to 27,115.81, 40,685.36 and 10,487.51

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Solution

The fourth proportional to 27,115.81, 40,685.36 and 10,487.51 is: 15,735.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,115.81 : 40,685.36 = 10,487.51 : x
  2. Step 2: Convert to fraction form
    27,115.81/40,685.36 = 10,487.51/x
  3. Step 3: Cross multiply
    27,115.81x = 40,685.36 × 10,487.51
  4. Step 4: Simplify right side
    27,115.81x = 426,688,119.85
  5. Step 5: Solve for x
    x = 426,688,119.85/27,115.81
  6. Step 6: Final answer
    x = 15,735.77

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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.