Home / 19,681.36-27,277.50-19,312.72

Finding the Fourth Proportional to 19,681.36, 27,277.50 and 19,312.72

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Solution

The fourth proportional to 19,681.36, 27,277.50 and 19,312.72 is: 26,766.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.36 : 27,277.50 = 19,312.72 : x
  2. Step 2: Convert to fraction form
    19,681.36/27,277.50 = 19,312.72/x
  3. Step 3: Cross multiply
    19,681.36x = 27,277.50 × 19,312.72
  4. Step 4: Simplify right side
    19,681.36x = 526,802,719.80
  5. Step 5: Solve for x
    x = 526,802,719.80/19,681.36
  6. Step 6: Final answer
    x = 26,766.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.