Home / 39,866.58-59,689.14-20,085.16

Finding the Fourth Proportional to 39,866.58, 59,689.14 and 20,085.16

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Solution

The fourth proportional to 39,866.58, 59,689.14 and 20,085.16 is: 30,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,866.58 : 59,689.14 = 20,085.16 : x
  2. Step 2: Convert to fraction form
    39,866.58/59,689.14 = 20,085.16/x
  3. Step 3: Cross multiply
    39,866.58x = 59,689.14 × 20,085.16
  4. Step 4: Simplify right side
    39,866.58x = 1,198,865,927.16
  5. Step 5: Solve for x
    x = 1,198,865,927.16/39,866.58
  6. Step 6: Final answer
    x = 30,071.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.