Home / 28,501.08-42,760.26-20,197.16

Finding the Fourth Proportional to 28,501.08, 42,760.26 and 20,197.16

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Solution

The fourth proportional to 28,501.08, 42,760.26 and 20,197.16 is: 30,301.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.08 : 42,760.26 = 20,197.16 : x
  2. Step 2: Convert to fraction form
    28,501.08/42,760.26 = 20,197.16/x
  3. Step 3: Cross multiply
    28,501.08x = 42,760.26 × 20,197.16
  4. Step 4: Simplify right side
    28,501.08x = 863,635,812.86
  5. Step 5: Solve for x
    x = 863,635,812.86/28,501.08
  6. Step 6: Final answer
    x = 30,301.86

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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.