Home / 31,599.27-47,357.91-12,857.49

Finding the Fourth Proportional to 31,599.27, 47,357.91 and 12,857.49

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Solution

The fourth proportional to 31,599.27, 47,357.91 and 12,857.49 is: 19,269.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,599.27 : 47,357.91 = 12,857.49 : x
  2. Step 2: Convert to fraction form
    31,599.27/47,357.91 = 12,857.49/x
  3. Step 3: Cross multiply
    31,599.27x = 47,357.91 × 12,857.49
  4. Step 4: Simplify right side
    31,599.27x = 608,903,854.25
  5. Step 5: Solve for x
    x = 608,903,854.25/31,599.27
  6. Step 6: Final answer
    x = 19,269.55

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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.