Home / 28,746.61-39,669-20,252.14

Finding the Fourth Proportional to 28,746.61, 39,669 and 20,252.14

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Solution

The fourth proportional to 28,746.61, 39,669 and 20,252.14 is: 27,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.61 : 39,669 = 20,252.14 : x
  2. Step 2: Convert to fraction form
    28,746.61/39,669 = 20,252.14/x
  3. Step 3: Cross multiply
    28,746.61x = 39,669 × 20,252.14
  4. Step 4: Simplify right side
    28,746.61x = 803,382,141.66
  5. Step 5: Solve for x
    x = 803,382,141.66/28,746.61
  6. Step 6: Final answer
    x = 27,947.02

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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.