Home / 31,507.07-43,488.14-18,597.69

Finding the Fourth Proportional to 31,507.07, 43,488.14 and 18,597.69

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Solution

The fourth proportional to 31,507.07, 43,488.14 and 18,597.69 is: 25,669.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507.07 : 43,488.14 = 18,597.69 : x
  2. Step 2: Convert to fraction form
    31,507.07/43,488.14 = 18,597.69/x
  3. Step 3: Cross multiply
    31,507.07x = 43,488.14 × 18,597.69
  4. Step 4: Simplify right side
    31,507.07x = 808,778,853.41
  5. Step 5: Solve for x
    x = 808,778,853.41/31,507.07
  6. Step 6: Final answer
    x = 25,669.76

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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.