Home / 31,779.11-47,660.62-13,064.32

Finding the Fourth Proportional to 31,779.11, 47,660.62 and 13,064.32

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Solution

The fourth proportional to 31,779.11, 47,660.62 and 13,064.32 is: 19,593.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.11 : 47,660.62 = 13,064.32 : x
  2. Step 2: Convert to fraction form
    31,779.11/47,660.62 = 13,064.32/x
  3. Step 3: Cross multiply
    31,779.11x = 47,660.62 × 13,064.32
  4. Step 4: Simplify right side
    31,779.11x = 622,653,287.45
  5. Step 5: Solve for x
    x = 622,653,287.45/31,779.11
  6. Step 6: Final answer
    x = 19,593.16

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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.