Home / 20,347.08-30,518.19-5,557.29

Finding the Fourth Proportional to 20,347.08, 30,518.19 and 5,557.29

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Solution

The fourth proportional to 20,347.08, 30,518.19 and 5,557.29 is: 8,335.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.08 : 30,518.19 = 5,557.29 : x
  2. Step 2: Convert to fraction form
    20,347.08/30,518.19 = 5,557.29/x
  3. Step 3: Cross multiply
    20,347.08x = 30,518.19 × 5,557.29
  4. Step 4: Simplify right side
    20,347.08x = 169,598,432.11
  5. Step 5: Solve for x
    x = 169,598,432.11/20,347.08
  6. Step 6: Final answer
    x = 8,335.27

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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.