Home / 31,709.60-47,567.55-11,724.34

Finding the Fourth Proportional to 31,709.60, 47,567.55 and 11,724.34

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Solution

The fourth proportional to 31,709.60, 47,567.55 and 11,724.34 is: 17,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709.60 : 47,567.55 = 11,724.34 : x
  2. Step 2: Convert to fraction form
    31,709.60/47,567.55 = 11,724.34/x
  3. Step 3: Cross multiply
    31,709.60x = 47,567.55 × 11,724.34
  4. Step 4: Simplify right side
    31,709.60x = 557,698,129.17
  5. Step 5: Solve for x
    x = 557,698,129.17/31,709.60
  6. Step 6: Final answer
    x = 17,587.67

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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.