Home / 31,788.18-47,703.87-11,011.50

Finding the Fourth Proportional to 31,788.18, 47,703.87 and 11,011.50

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Solution

The fourth proportional to 31,788.18, 47,703.87 and 11,011.50 is: 16,524.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.18 : 47,703.87 = 11,011.50 : x
  2. Step 2: Convert to fraction form
    31,788.18/47,703.87 = 11,011.50/x
  3. Step 3: Cross multiply
    31,788.18x = 47,703.87 × 11,011.50
  4. Step 4: Simplify right side
    31,788.18x = 525,291,164.51
  5. Step 5: Solve for x
    x = 525,291,164.51/31,788.18
  6. Step 6: Final answer
    x = 16,524.73

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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.