Home / 28,573.66-39,425.13-18,370.03

Finding the Fourth Proportional to 28,573.66, 39,425.13 and 18,370.03

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Solution

The fourth proportional to 28,573.66, 39,425.13 and 18,370.03 is: 25,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.66 : 39,425.13 = 18,370.03 : x
  2. Step 2: Convert to fraction form
    28,573.66/39,425.13 = 18,370.03/x
  3. Step 3: Cross multiply
    28,573.66x = 39,425.13 × 18,370.03
  4. Step 4: Simplify right side
    28,573.66x = 724,240,820.85
  5. Step 5: Solve for x
    x = 724,240,820.85/28,573.66
  6. Step 6: Final answer
    x = 25,346.45

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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.