Home / 31,589.14-47,342.72-12,847.36

Finding the Fourth Proportional to 31,589.14, 47,342.72 and 12,847.36

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Solution

The fourth proportional to 31,589.14, 47,342.72 and 12,847.36 is: 19,254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589.14 : 47,342.72 = 12,847.36 : x
  2. Step 2: Convert to fraction form
    31,589.14/47,342.72 = 12,847.36/x
  3. Step 3: Cross multiply
    31,589.14x = 47,342.72 × 12,847.36
  4. Step 4: Simplify right side
    31,589.14x = 608,228,967.22
  5. Step 5: Solve for x
    x = 608,228,967.22/31,589.14
  6. Step 6: Final answer
    x = 19,254.37

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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.