Home / 28,174.47-38,881.35-17,420.91

Finding the Fourth Proportional to 28,174.47, 38,881.35 and 17,420.91

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Solution

The fourth proportional to 28,174.47, 38,881.35 and 17,420.91 is: 24,041.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.47 : 38,881.35 = 17,420.91 : x
  2. Step 2: Convert to fraction form
    28,174.47/38,881.35 = 17,420.91/x
  3. Step 3: Cross multiply
    28,174.47x = 38,881.35 × 17,420.91
  4. Step 4: Simplify right side
    28,174.47x = 677,348,499.03
  5. Step 5: Solve for x
    x = 677,348,499.03/28,174.47
  6. Step 6: Final answer
    x = 24,041.22

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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.