Home / 31,777.92-47,657.79-12,802.50

Finding the Fourth Proportional to 31,777.92, 47,657.79 and 12,802.50

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Solution

The fourth proportional to 31,777.92, 47,657.79 and 12,802.50 is: 19,200.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,777.92 : 47,657.79 = 12,802.50 : x
  2. Step 2: Convert to fraction form
    31,777.92/47,657.79 = 12,802.50/x
  3. Step 3: Cross multiply
    31,777.92x = 47,657.79 × 12,802.50
  4. Step 4: Simplify right side
    31,777.92x = 610,138,856.48
  5. Step 5: Solve for x
    x = 610,138,856.48/31,777.92
  6. Step 6: Final answer
    x = 19,200.09

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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.