Home / 23,130.27-31,935.20-15,587.82

Finding the Fourth Proportional to 23,130.27, 31,935.20 and 15,587.82

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Solution

The fourth proportional to 23,130.27, 31,935.20 and 15,587.82 is: 21,521.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.27 : 31,935.20 = 15,587.82 : x
  2. Step 2: Convert to fraction form
    23,130.27/31,935.20 = 15,587.82/x
  3. Step 3: Cross multiply
    23,130.27x = 31,935.20 × 15,587.82
  4. Step 4: Simplify right side
    23,130.27x = 497,800,071.32
  5. Step 5: Solve for x
    x = 497,800,071.32/23,130.27
  6. Step 6: Final answer
    x = 21,521.58

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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.