Home / 28,322.31-39,085.79-15,576.48

Finding the Fourth Proportional to 28,322.31, 39,085.79 and 15,576.48

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Solution

The fourth proportional to 28,322.31, 39,085.79 and 15,576.48 is: 21,496.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.31 : 39,085.79 = 15,576.48 : x
  2. Step 2: Convert to fraction form
    28,322.31/39,085.79 = 15,576.48/x
  3. Step 3: Cross multiply
    28,322.31x = 39,085.79 × 15,576.48
  4. Step 4: Simplify right side
    28,322.31x = 608,819,084.63
  5. Step 5: Solve for x
    x = 608,819,084.63/28,322.31
  6. Step 6: Final answer
    x = 21,496.09

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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.