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Finding the Fourth Proportional to 44,454.40, 66,658.80 and 13,285.60

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Solution

The fourth proportional to 44,454.40, 66,658.80 and 13,285.60 is: 19,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,454.40 : 66,658.80 = 13,285.60 : x
  2. Step 2: Convert to fraction form
    44,454.40/66,658.80 = 13,285.60/x
  3. Step 3: Cross multiply
    44,454.40x = 66,658.80 × 13,285.60
  4. Step 4: Simplify right side
    44,454.40x = 885,602,153.28
  5. Step 5: Solve for x
    x = 885,602,153.28/44,454.40
  6. Step 6: Final answer
    x = 19,921.59

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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.