Home / 31,030.80-42,822.36-16,883.52

Finding the Fourth Proportional to 31,030.80, 42,822.36 and 16,883.52

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Solution

The fourth proportional to 31,030.80, 42,822.36 and 16,883.52 is: 23,299.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,030.80 : 42,822.36 = 16,883.52 : x
  2. Step 2: Convert to fraction form
    31,030.80/42,822.36 = 16,883.52/x
  3. Step 3: Cross multiply
    31,030.80x = 42,822.36 × 16,883.52
  4. Step 4: Simplify right side
    31,030.80x = 722,992,171.51
  5. Step 5: Solve for x
    x = 722,992,171.51/31,030.80
  6. Step 6: Final answer
    x = 23,299.18

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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.