Home / 28,274.56-39,019.98-15,701.68

Finding the Fourth Proportional to 28,274.56, 39,019.98 and 15,701.68

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Solution

The fourth proportional to 28,274.56, 39,019.98 and 15,701.68 is: 21,668.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274.56 : 39,019.98 = 15,701.68 : x
  2. Step 2: Convert to fraction form
    28,274.56/39,019.98 = 15,701.68/x
  3. Step 3: Cross multiply
    28,274.56x = 39,019.98 × 15,701.68
  4. Step 4: Simplify right side
    28,274.56x = 612,679,239.57
  5. Step 5: Solve for x
    x = 612,679,239.57/28,274.56
  6. Step 6: Final answer
    x = 21,668.92

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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.