Home / 28,330.49-39,055.10-18,754.34

Finding the Fourth Proportional to 28,330.49, 39,055.10 and 18,754.34

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Solution

The fourth proportional to 28,330.49, 39,055.10 and 18,754.34 is: 25,853.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.49 : 39,055.10 = 18,754.34 : x
  2. Step 2: Convert to fraction form
    28,330.49/39,055.10 = 18,754.34/x
  3. Step 3: Cross multiply
    28,330.49x = 39,055.10 × 18,754.34
  4. Step 4: Simplify right side
    28,330.49x = 732,452,335.09
  5. Step 5: Solve for x
    x = 732,452,335.09/28,330.49
  6. Step 6: Final answer
    x = 25,853.85

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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.