Home / 31,357.08-43,271.01-17,208.81

Finding the Fourth Proportional to 31,357.08, 43,271.01 and 17,208.81

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Solution

The fourth proportional to 31,357.08, 43,271.01 and 17,208.81 is: 23,747.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,357.08 : 43,271.01 = 17,208.81 : x
  2. Step 2: Convert to fraction form
    31,357.08/43,271.01 = 17,208.81/x
  3. Step 3: Cross multiply
    31,357.08x = 43,271.01 × 17,208.81
  4. Step 4: Simplify right side
    31,357.08x = 744,642,589.60
  5. Step 5: Solve for x
    x = 744,642,589.60/31,357.08
  6. Step 6: Final answer
    x = 23,747.19

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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.