Home / 31,595.45-47,393.08-12,871.37

Finding the Fourth Proportional to 31,595.45, 47,393.08 and 12,871.37

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Solution

The fourth proportional to 31,595.45, 47,393.08 and 12,871.37 is: 19,307.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,595.45 : 47,393.08 = 12,871.37 : x
  2. Step 2: Convert to fraction form
    31,595.45/47,393.08 = 12,871.37/x
  3. Step 3: Cross multiply
    31,595.45x = 47,393.08 × 12,871.37
  4. Step 4: Simplify right side
    31,595.45x = 610,013,954.42
  5. Step 5: Solve for x
    x = 610,013,954.42/31,595.45
  6. Step 6: Final answer
    x = 19,307.02

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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.