Home / 31,059.95-42,863.93-18,491.99

Finding the Fourth Proportional to 31,059.95, 42,863.93 and 18,491.99

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Solution

The fourth proportional to 31,059.95, 42,863.93 and 18,491.99 is: 25,519.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,059.95 : 42,863.93 = 18,491.99 : x
  2. Step 2: Convert to fraction form
    31,059.95/42,863.93 = 18,491.99/x
  3. Step 3: Cross multiply
    31,059.95x = 42,863.93 × 18,491.99
  4. Step 4: Simplify right side
    31,059.95x = 792,639,058.14
  5. Step 5: Solve for x
    x = 792,639,058.14/31,059.95
  6. Step 6: Final answer
    x = 25,519.65

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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.