Home / 28,011.08-42,015.78-11,370.71

Finding the Fourth Proportional to 28,011.08, 42,015.78 and 11,370.71

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Solution

The fourth proportional to 28,011.08, 42,015.78 and 11,370.71 is: 17,055.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.08 : 42,015.78 = 11,370.71 : x
  2. Step 2: Convert to fraction form
    28,011.08/42,015.78 = 11,370.71/x
  3. Step 3: Cross multiply
    28,011.08x = 42,015.78 × 11,370.71
  4. Step 4: Simplify right side
    28,011.08x = 477,749,354.84
  5. Step 5: Solve for x
    x = 477,749,354.84/28,011.08
  6. Step 6: Final answer
    x = 17,055.73

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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.