Home / 28,772.08-39,703.91-15,848.83

Finding the Fourth Proportional to 28,772.08, 39,703.91 and 15,848.83

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Solution

The fourth proportional to 28,772.08, 39,703.91 and 15,848.83 is: 21,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772.08 : 39,703.91 = 15,848.83 : x
  2. Step 2: Convert to fraction form
    28,772.08/39,703.91 = 15,848.83/x
  3. Step 3: Cross multiply
    28,772.08x = 39,703.91 × 15,848.83
  4. Step 4: Simplify right side
    28,772.08x = 629,260,266.98
  5. Step 5: Solve for x
    x = 629,260,266.98/28,772.08
  6. Step 6: Final answer
    x = 21,870.51

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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.