Home / 31,020.36-42,815.70-17,599.47

Finding the Fourth Proportional to 31,020.36, 42,815.70 and 17,599.47

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Solution

The fourth proportional to 31,020.36, 42,815.70 and 17,599.47 is: 24,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,020.36 : 42,815.70 = 17,599.47 : x
  2. Step 2: Convert to fraction form
    31,020.36/42,815.70 = 17,599.47/x
  3. Step 3: Cross multiply
    31,020.36x = 42,815.70 × 17,599.47
  4. Step 4: Simplify right side
    31,020.36x = 753,533,627.68
  5. Step 5: Solve for x
    x = 753,533,627.68/31,020.36
  6. Step 6: Final answer
    x = 24,291.58

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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.