Home / 27,155.81-40,712.85-10,288.58

Finding the Fourth Proportional to 27,155.81, 40,712.85 and 10,288.58

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Solution

The fourth proportional to 27,155.81, 40,712.85 and 10,288.58 is: 15,424.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155.81 : 40,712.85 = 10,288.58 : x
  2. Step 2: Convert to fraction form
    27,155.81/40,712.85 = 10,288.58/x
  3. Step 3: Cross multiply
    27,155.81x = 40,712.85 × 10,288.58
  4. Step 4: Simplify right side
    27,155.81x = 418,877,210.69
  5. Step 5: Solve for x
    x = 418,877,210.69/27,155.81
  6. Step 6: Final answer
    x = 15,424.96

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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.