Home / 31,637.34-47,438.03-12,895.42

Finding the Fourth Proportional to 31,637.34, 47,438.03 and 12,895.42

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Solution

The fourth proportional to 31,637.34, 47,438.03 and 12,895.42 is: 19,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,637.34 : 47,438.03 = 12,895.42 : x
  2. Step 2: Convert to fraction form
    31,637.34/47,438.03 = 12,895.42/x
  3. Step 3: Cross multiply
    31,637.34x = 47,438.03 × 12,895.42
  4. Step 4: Simplify right side
    31,637.34x = 611,733,320.82
  5. Step 5: Solve for x
    x = 611,733,320.82/31,637.34
  6. Step 6: Final answer
    x = 19,335.80

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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.