Home / 19,758.63-27,293.54-15,807.99

Finding the Fourth Proportional to 19,758.63, 27,293.54 and 15,807.99

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Solution

The fourth proportional to 19,758.63, 27,293.54 and 15,807.99 is: 21,836.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.63 : 27,293.54 = 15,807.99 : x
  2. Step 2: Convert to fraction form
    19,758.63/27,293.54 = 15,807.99/x
  3. Step 3: Cross multiply
    19,758.63x = 27,293.54 × 15,807.99
  4. Step 4: Simplify right side
    19,758.63x = 431,455,928.34
  5. Step 5: Solve for x
    x = 431,455,928.34/19,758.63
  6. Step 6: Final answer
    x = 21,836.33

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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.