Home / 47,995.39-71,988.22-12,938.59

Finding the Fourth Proportional to 47,995.39, 71,988.22 and 12,938.59

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Solution

The fourth proportional to 47,995.39, 71,988.22 and 12,938.59 is: 19,406.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,995.39 : 71,988.22 = 12,938.59 : x
  2. Step 2: Convert to fraction form
    47,995.39/71,988.22 = 12,938.59/x
  3. Step 3: Cross multiply
    47,995.39x = 71,988.22 × 12,938.59
  4. Step 4: Simplify right side
    47,995.39x = 931,426,063.41
  5. Step 5: Solve for x
    x = 931,426,063.41/47,995.39
  6. Step 6: Final answer
    x = 19,406.57

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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.