Home / 31,064.11-42,866.44-18,316.68

Finding the Fourth Proportional to 31,064.11, 42,866.44 and 18,316.68

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Solution

The fourth proportional to 31,064.11, 42,866.44 and 18,316.68 is: 25,275.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,064.11 : 42,866.44 = 18,316.68 : x
  2. Step 2: Convert to fraction form
    31,064.11/42,866.44 = 18,316.68/x
  3. Step 3: Cross multiply
    31,064.11x = 42,866.44 × 18,316.68
  4. Step 4: Simplify right side
    31,064.11x = 785,170,853.52
  5. Step 5: Solve for x
    x = 785,170,853.52/31,064.11
  6. Step 6: Final answer
    x = 25,275.82

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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.