Home / 18,911.46-28,325.86-15,587.22

Finding the Fourth Proportional to 18,911.46, 28,325.86 and 15,587.22

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Solution

The fourth proportional to 18,911.46, 28,325.86 and 15,587.22 is: 23,346.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.46 : 28,325.86 = 15,587.22 : x
  2. Step 2: Convert to fraction form
    18,911.46/28,325.86 = 15,587.22/x
  3. Step 3: Cross multiply
    18,911.46x = 28,325.86 × 15,587.22
  4. Step 4: Simplify right side
    18,911.46x = 441,521,411.51
  5. Step 5: Solve for x
    x = 441,521,411.51/18,911.46
  6. Step 6: Final answer
    x = 23,346.76

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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.