Home / 19,758.51-27,276.63-15,272.10

Finding the Fourth Proportional to 19,758.51, 27,276.63 and 15,272.10

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Solution

The fourth proportional to 19,758.51, 27,276.63 and 15,272.10 is: 21,083.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.51 : 27,276.63 = 15,272.10 : x
  2. Step 2: Convert to fraction form
    19,758.51/27,276.63 = 15,272.10/x
  3. Step 3: Cross multiply
    19,758.51x = 27,276.63 × 15,272.10
  4. Step 4: Simplify right side
    19,758.51x = 416,571,421.02
  5. Step 5: Solve for x
    x = 416,571,421.02/19,758.51
  6. Step 6: Final answer
    x = 21,083.14

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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.