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Finding the Fourth Proportional to 47,848.88, 66,014.52 and 28,728.56

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Solution

The fourth proportional to 47,848.88, 66,014.52 and 28,728.56 is: 39,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,848.88 : 66,014.52 = 28,728.56 : x
  2. Step 2: Convert to fraction form
    47,848.88/66,014.52 = 28,728.56/x
  3. Step 3: Cross multiply
    47,848.88x = 66,014.52 × 28,728.56
  4. Step 4: Simplify right side
    47,848.88x = 1,896,502,098.69
  5. Step 5: Solve for x
    x = 1,896,502,098.69/47,848.88
  6. Step 6: Final answer
    x = 39,635.25

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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.