Home / 27,806.02-38,368.62-15,868.64

Finding the Fourth Proportional to 27,806.02, 38,368.62 and 15,868.64

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Solution

The fourth proportional to 27,806.02, 38,368.62 and 15,868.64 is: 21,896.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,806.02 : 38,368.62 = 15,868.64 : x
  2. Step 2: Convert to fraction form
    27,806.02/38,368.62 = 15,868.64/x
  3. Step 3: Cross multiply
    27,806.02x = 38,368.62 × 15,868.64
  4. Step 4: Simplify right side
    27,806.02x = 608,857,914.00
  5. Step 5: Solve for x
    x = 608,857,914.00/27,806.02
  6. Step 6: Final answer
    x = 21,896.62

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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.