Home / 31,580.28-47,329.41-12,838.50

Finding the Fourth Proportional to 31,580.28, 47,329.41 and 12,838.50

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Solution

The fourth proportional to 31,580.28, 47,329.41 and 12,838.50 is: 19,241.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,580.28 : 47,329.41 = 12,838.50 : x
  2. Step 2: Convert to fraction form
    31,580.28/47,329.41 = 12,838.50/x
  3. Step 3: Cross multiply
    31,580.28x = 47,329.41 × 12,838.50
  4. Step 4: Simplify right side
    31,580.28x = 607,638,630.29
  5. Step 5: Solve for x
    x = 607,638,630.29/31,580.28
  6. Step 6: Final answer
    x = 19,241.08

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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.