Home / 19,289.16-28,882.98-15,520.86

Finding the Fourth Proportional to 19,289.16, 28,882.98 and 15,520.86

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Solution

The fourth proportional to 19,289.16, 28,882.98 and 15,520.86 is: 23,240.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289.16 : 28,882.98 = 15,520.86 : x
  2. Step 2: Convert to fraction form
    19,289.16/28,882.98 = 15,520.86/x
  3. Step 3: Cross multiply
    19,289.16x = 28,882.98 × 15,520.86
  4. Step 4: Simplify right side
    19,289.16x = 448,288,688.96
  5. Step 5: Solve for x
    x = 448,288,688.96/19,289.16
  6. Step 6: Final answer
    x = 23,240.45

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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.