Home / 28,603.83-39,473.38-15,859.09

Finding the Fourth Proportional to 28,603.83, 39,473.38 and 15,859.09

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Solution

The fourth proportional to 28,603.83, 39,473.38 and 15,859.09 is: 21,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,603.83 : 39,473.38 = 15,859.09 : x
  2. Step 2: Convert to fraction form
    28,603.83/39,473.38 = 15,859.09/x
  3. Step 3: Cross multiply
    28,603.83x = 39,473.38 × 15,859.09
  4. Step 4: Simplify right side
    28,603.83x = 626,011,865.98
  5. Step 5: Solve for x
    x = 626,011,865.98/28,603.83
  6. Step 6: Final answer
    x = 21,885.59

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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.