Home / 31,339.57-47,008.86-12,619.16

Finding the Fourth Proportional to 31,339.57, 47,008.86 and 12,619.16

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Solution

The fourth proportional to 31,339.57, 47,008.86 and 12,619.16 is: 18,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,339.57 : 47,008.86 = 12,619.16 : x
  2. Step 2: Convert to fraction form
    31,339.57/47,008.86 = 12,619.16/x
  3. Step 3: Cross multiply
    31,339.57x = 47,008.86 × 12,619.16
  4. Step 4: Simplify right side
    31,339.57x = 593,212,368.74
  5. Step 5: Solve for x
    x = 593,212,368.74/31,339.57
  6. Step 6: Final answer
    x = 18,928.54

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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.