Home / 31,881.06-47,909.07-30,069.50

Finding the Fourth Proportional to 31,881.06, 47,909.07 and 30,069.50

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Solution

The fourth proportional to 31,881.06, 47,909.07 and 30,069.50 is: 45,186.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,881.06 : 47,909.07 = 30,069.50 : x
  2. Step 2: Convert to fraction form
    31,881.06/47,909.07 = 30,069.50/x
  3. Step 3: Cross multiply
    31,881.06x = 47,909.07 × 30,069.50
  4. Step 4: Simplify right side
    31,881.06x = 1,440,601,540.82
  5. Step 5: Solve for x
    x = 1,440,601,540.82/31,881.06
  6. Step 6: Final answer
    x = 45,186.75

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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.