Home / 31,533.06-47,299.76-8,159.50

Finding the Fourth Proportional to 31,533.06, 47,299.76 and 8,159.50

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Solution

The fourth proportional to 31,533.06, 47,299.76 and 8,159.50 is: 12,239.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,533.06 : 47,299.76 = 8,159.50 : x
  2. Step 2: Convert to fraction form
    31,533.06/47,299.76 = 8,159.50/x
  3. Step 3: Cross multiply
    31,533.06x = 47,299.76 × 8,159.50
  4. Step 4: Simplify right side
    31,533.06x = 385,942,263.27
  5. Step 5: Solve for x
    x = 385,942,263.27/31,533.06
  6. Step 6: Final answer
    x = 12,239.29

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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.