Home / 31,285.20-43,176.67-17,858.47

Finding the Fourth Proportional to 31,285.20, 43,176.67 and 17,858.47

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Solution

The fourth proportional to 31,285.20, 43,176.67 and 17,858.47 is: 24,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.20 : 43,176.67 = 17,858.47 : x
  2. Step 2: Convert to fraction form
    31,285.20/43,176.67 = 17,858.47/x
  3. Step 3: Cross multiply
    31,285.20x = 43,176.67 × 17,858.47
  4. Step 4: Simplify right side
    31,285.20x = 771,069,194.26
  5. Step 5: Solve for x
    x = 771,069,194.26/31,285.20
  6. Step 6: Final answer
    x = 24,646.46

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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.