Home / 31,388.86-47,073.48-10,607.50

Finding the Fourth Proportional to 31,388.86, 47,073.48 and 10,607.50

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Solution

The fourth proportional to 31,388.86, 47,073.48 and 10,607.50 is: 15,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388.86 : 47,073.48 = 10,607.50 : x
  2. Step 2: Convert to fraction form
    31,388.86/47,073.48 = 10,607.50/x
  3. Step 3: Cross multiply
    31,388.86x = 47,073.48 × 10,607.50
  4. Step 4: Simplify right side
    31,388.86x = 499,331,939.10
  5. Step 5: Solve for x
    x = 499,331,939.10/31,388.86
  6. Step 6: Final answer
    x = 15,907.93

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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.