Home / 31,975.48-47,967.58-10,909.86

Finding the Fourth Proportional to 31,975.48, 47,967.58 and 10,909.86

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Solution

The fourth proportional to 31,975.48, 47,967.58 and 10,909.86 is: 16,366.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,975.48 : 47,967.58 = 10,909.86 : x
  2. Step 2: Convert to fraction form
    31,975.48/47,967.58 = 10,909.86/x
  3. Step 3: Cross multiply
    31,975.48x = 47,967.58 × 10,909.86
  4. Step 4: Simplify right side
    31,975.48x = 523,319,582.34
  5. Step 5: Solve for x
    x = 523,319,582.34/31,975.48
  6. Step 6: Final answer
    x = 16,366.28

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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.