Home / 20,336.47-30,388.15-15,501.16

Finding the Fourth Proportional to 20,336.47, 30,388.15 and 15,501.16

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Solution

The fourth proportional to 20,336.47, 30,388.15 and 15,501.16 is: 23,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.47 : 30,388.15 = 15,501.16 : x
  2. Step 2: Convert to fraction form
    20,336.47/30,388.15 = 15,501.16/x
  3. Step 3: Cross multiply
    20,336.47x = 30,388.15 × 15,501.16
  4. Step 4: Simplify right side
    20,336.47x = 471,051,575.25
  5. Step 5: Solve for x
    x = 471,051,575.25/20,336.47
  6. Step 6: Final answer
    x = 23,162.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.