Home / 31,130.54-42,961.36-17,703.02

Finding the Fourth Proportional to 31,130.54, 42,961.36 and 17,703.02

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Solution

The fourth proportional to 31,130.54, 42,961.36 and 17,703.02 is: 24,430.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,130.54 : 42,961.36 = 17,703.02 : x
  2. Step 2: Convert to fraction form
    31,130.54/42,961.36 = 17,703.02/x
  3. Step 3: Cross multiply
    31,130.54x = 42,961.36 × 17,703.02
  4. Step 4: Simplify right side
    31,130.54x = 760,545,815.31
  5. Step 5: Solve for x
    x = 760,545,815.31/31,130.54
  6. Step 6: Final answer
    x = 24,430.86

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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.