Home / 31,584.04-47,334.08-13,787.78

Finding the Fourth Proportional to 31,584.04, 47,334.08 and 13,787.78

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Solution

The fourth proportional to 31,584.04, 47,334.08 and 13,787.78 is: 20,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,584.04 : 47,334.08 = 13,787.78 : x
  2. Step 2: Convert to fraction form
    31,584.04/47,334.08 = 13,787.78/x
  3. Step 3: Cross multiply
    31,584.04x = 47,334.08 × 13,787.78
  4. Step 4: Simplify right side
    31,584.04x = 652,632,031.55
  5. Step 5: Solve for x
    x = 652,632,031.55/31,584.04
  6. Step 6: Final answer
    x = 20,663.35

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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.