Home / 20,390.76-30,580.27-5,600.16

Finding the Fourth Proportional to 20,390.76, 30,580.27 and 5,600.16

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Solution

The fourth proportional to 20,390.76, 30,580.27 and 5,600.16 is: 8,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390.76 : 30,580.27 = 5,600.16 : x
  2. Step 2: Convert to fraction form
    20,390.76/30,580.27 = 5,600.16/x
  3. Step 3: Cross multiply
    20,390.76x = 30,580.27 × 5,600.16
  4. Step 4: Simplify right side
    20,390.76x = 171,254,390.84
  5. Step 5: Solve for x
    x = 171,254,390.84/20,390.76
  6. Step 6: Final answer
    x = 8,398.63

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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.