Home / 19,031.76-28,561.66-9,036.54

Finding the Fourth Proportional to 19,031.76, 28,561.66 and 9,036.54

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Solution

The fourth proportional to 19,031.76, 28,561.66 and 9,036.54 is: 13,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.76 : 28,561.66 = 9,036.54 : x
  2. Step 2: Convert to fraction form
    19,031.76/28,561.66 = 9,036.54/x
  3. Step 3: Cross multiply
    19,031.76x = 28,561.66 × 9,036.54
  4. Step 4: Simplify right side
    19,031.76x = 258,098,583.06
  5. Step 5: Solve for x
    x = 258,098,583.06/19,031.76
  6. Step 6: Final answer
    x = 13,561.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.