Home / 31,427.98-47,129.64-11,695.74

Finding the Fourth Proportional to 31,427.98, 47,129.64 and 11,695.74

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Solution

The fourth proportional to 31,427.98, 47,129.64 and 11,695.74 is: 17,539.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.98 : 47,129.64 = 11,695.74 : x
  2. Step 2: Convert to fraction form
    31,427.98/47,129.64 = 11,695.74/x
  3. Step 3: Cross multiply
    31,427.98x = 47,129.64 × 11,695.74
  4. Step 4: Simplify right side
    31,427.98x = 551,216,015.73
  5. Step 5: Solve for x
    x = 551,216,015.73/31,427.98
  6. Step 6: Final answer
    x = 17,539.02

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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.