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Finding the Fourth Proportional to 40,410.40, 60,619.52 and 13,775.16

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Solution

The fourth proportional to 40,410.40, 60,619.52 and 13,775.16 is: 20,664.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,410.40 : 60,619.52 = 13,775.16 : x
  2. Step 2: Convert to fraction form
    40,410.40/60,619.52 = 13,775.16/x
  3. Step 3: Cross multiply
    40,410.40x = 60,619.52 × 13,775.16
  4. Step 4: Simplify right side
    40,410.40x = 835,043,587.12
  5. Step 5: Solve for x
    x = 835,043,587.12/40,410.40
  6. Step 6: Final answer
    x = 20,664.08

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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.