Home / 31,953.71-47,907.88-12,215.63

Finding the Fourth Proportional to 31,953.71, 47,907.88 and 12,215.63

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Solution

The fourth proportional to 31,953.71, 47,907.88 and 12,215.63 is: 18,314.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,953.71 : 47,907.88 = 12,215.63 : x
  2. Step 2: Convert to fraction form
    31,953.71/47,907.88 = 12,215.63/x
  3. Step 3: Cross multiply
    31,953.71x = 47,907.88 × 12,215.63
  4. Step 4: Simplify right side
    31,953.71x = 585,224,936.16
  5. Step 5: Solve for x
    x = 585,224,936.16/31,953.71
  6. Step 6: Final answer
    x = 18,314.77

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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.