Home / 29,618.56-40,804.12-20,649.76

Finding the Fourth Proportional to 29,618.56, 40,804.12 and 20,649.76

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Solution

The fourth proportional to 29,618.56, 40,804.12 and 20,649.76 is: 28,448.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,618.56 : 40,804.12 = 20,649.76 : x
  2. Step 2: Convert to fraction form
    29,618.56/40,804.12 = 20,649.76/x
  3. Step 3: Cross multiply
    29,618.56x = 40,804.12 × 20,649.76
  4. Step 4: Simplify right side
    29,618.56x = 842,595,285.01
  5. Step 5: Solve for x
    x = 842,595,285.01/29,618.56
  6. Step 6: Final answer
    x = 28,448.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.