Home / 28,525.67-39,362.40-15,776.83

Finding the Fourth Proportional to 28,525.67, 39,362.40 and 15,776.83

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Solution

The fourth proportional to 28,525.67, 39,362.40 and 15,776.83 is: 21,770.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.67 : 39,362.40 = 15,776.83 : x
  2. Step 2: Convert to fraction form
    28,525.67/39,362.40 = 15,776.83/x
  3. Step 3: Cross multiply
    28,525.67x = 39,362.40 × 15,776.83
  4. Step 4: Simplify right side
    28,525.67x = 621,013,671.01
  5. Step 5: Solve for x
    x = 621,013,671.01/28,525.67
  6. Step 6: Final answer
    x = 21,770.35

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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.