Home / 28,281.81-42,415.38-11,632.71

Finding the Fourth Proportional to 28,281.81, 42,415.38 and 11,632.71

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Solution

The fourth proportional to 28,281.81, 42,415.38 and 11,632.71 is: 17,446.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.81 : 42,415.38 = 11,632.71 : x
  2. Step 2: Convert to fraction form
    28,281.81/42,415.38 = 11,632.71/x
  3. Step 3: Cross multiply
    28,281.81x = 42,415.38 × 11,632.71
  4. Step 4: Simplify right side
    28,281.81x = 493,405,815.08
  5. Step 5: Solve for x
    x = 493,405,815.08/28,281.81
  6. Step 6: Final answer
    x = 17,446.05

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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.