Home / 31,346.70-47,030.85-13,829.10

Finding the Fourth Proportional to 31,346.70, 47,030.85 and 13,829.10

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Solution

The fourth proportional to 31,346.70, 47,030.85 and 13,829.10 is: 20,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,346.70 : 47,030.85 = 13,829.10 : x
  2. Step 2: Convert to fraction form
    31,346.70/47,030.85 = 13,829.10/x
  3. Step 3: Cross multiply
    31,346.70x = 47,030.85 × 13,829.10
  4. Step 4: Simplify right side
    31,346.70x = 650,394,327.74
  5. Step 5: Solve for x
    x = 650,394,327.74/31,346.70
  6. Step 6: Final answer
    x = 20,748.41

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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.