Home / 31,520.36-43,518.34-19,599.90

Finding the Fourth Proportional to 31,520.36, 43,518.34 and 19,599.90

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Solution

The fourth proportional to 31,520.36, 43,518.34 and 19,599.90 is: 27,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,520.36 : 43,518.34 = 19,599.90 : x
  2. Step 2: Convert to fraction form
    31,520.36/43,518.34 = 19,599.90/x
  3. Step 3: Cross multiply
    31,520.36x = 43,518.34 × 19,599.90
  4. Step 4: Simplify right side
    31,520.36x = 852,955,112.17
  5. Step 5: Solve for x
    x = 852,955,112.17/31,520.36
  6. Step 6: Final answer
    x = 27,060.45

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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.