Home / 19,065.88-28,616.70-10,307.68

Finding the Fourth Proportional to 19,065.88, 28,616.70 and 10,307.68

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Solution

The fourth proportional to 19,065.88, 28,616.70 and 10,307.68 is: 15,471.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,065.88 : 28,616.70 = 10,307.68 : x
  2. Step 2: Convert to fraction form
    19,065.88/28,616.70 = 10,307.68/x
  3. Step 3: Cross multiply
    19,065.88x = 28,616.70 × 10,307.68
  4. Step 4: Simplify right side
    19,065.88x = 294,971,786.26
  5. Step 5: Solve for x
    x = 294,971,786.26/19,065.88
  6. Step 6: Final answer
    x = 15,471.19

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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.