Home / 31,551.98-47,357.14-15,980.54

Finding the Fourth Proportional to 31,551.98, 47,357.14 and 15,980.54

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Solution

The fourth proportional to 31,551.98, 47,357.14 and 15,980.54 is: 23,985.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.98 : 47,357.14 = 15,980.54 : x
  2. Step 2: Convert to fraction form
    31,551.98/47,357.14 = 15,980.54/x
  3. Step 3: Cross multiply
    31,551.98x = 47,357.14 × 15,980.54
  4. Step 4: Simplify right side
    31,551.98x = 756,792,670.06
  5. Step 5: Solve for x
    x = 756,792,670.06/31,551.98
  6. Step 6: Final answer
    x = 23,985.58

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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.