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Finding the Fourth Proportional to 29,419.20, 44,128.80 and 7,232.40

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Solution

The fourth proportional to 29,419.20, 44,128.80 and 7,232.40 is: 10,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,419.20 : 44,128.80 = 7,232.40 : x
  2. Step 2: Convert to fraction form
    29,419.20/44,128.80 = 7,232.40/x
  3. Step 3: Cross multiply
    29,419.20x = 44,128.80 × 7,232.40
  4. Step 4: Simplify right side
    29,419.20x = 319,157,133.12
  5. Step 5: Solve for x
    x = 319,157,133.12/29,419.20
  6. Step 6: Final answer
    x = 10,848.60

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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.