Home / 31,208.60-43,064.78-17,779.06

Finding the Fourth Proportional to 31,208.60, 43,064.78 and 17,779.06

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Solution

The fourth proportional to 31,208.60, 43,064.78 and 17,779.06 is: 24,533.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,208.60 : 43,064.78 = 17,779.06 : x
  2. Step 2: Convert to fraction form
    31,208.60/43,064.78 = 17,779.06/x
  3. Step 3: Cross multiply
    31,208.60x = 43,064.78 × 17,779.06
  4. Step 4: Simplify right side
    31,208.60x = 765,651,092.18
  5. Step 5: Solve for x
    x = 765,651,092.18/31,208.60
  6. Step 6: Final answer
    x = 24,533.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.