Home / 30,712.43-42,383.01-17,283.91

Finding the Fourth Proportional to 30,712.43, 42,383.01 and 17,283.91

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Solution

The fourth proportional to 30,712.43, 42,383.01 and 17,283.91 is: 23,851.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,712.43 : 42,383.01 = 17,283.91 : x
  2. Step 2: Convert to fraction form
    30,712.43/42,383.01 = 17,283.91/x
  3. Step 3: Cross multiply
    30,712.43x = 42,383.01 × 17,283.91
  4. Step 4: Simplify right side
    30,712.43x = 732,544,130.37
  5. Step 5: Solve for x
    x = 732,544,130.37/30,712.43
  6. Step 6: Final answer
    x = 23,851.72

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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.