Home / 30,719.54-42,393.05-17,291.00

Finding the Fourth Proportional to 30,719.54, 42,393.05 and 17,291.00

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Solution

The fourth proportional to 30,719.54, 42,393.05 and 17,291.00 is: 23,861.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,719.54 : 42,393.05 = 17,291.00 : x
  2. Step 2: Convert to fraction form
    30,719.54/42,393.05 = 17,291.00/x
  3. Step 3: Cross multiply
    30,719.54x = 42,393.05 × 17,291.00
  4. Step 4: Simplify right side
    30,719.54x = 733,017,929.13
  5. Step 5: Solve for x
    x = 733,017,929.13/30,719.54
  6. Step 6: Final answer
    x = 23,861.62

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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.