Home / 28,870.31-39,809.79-25,060.83

Finding the Fourth Proportional to 28,870.31, 39,809.79 and 25,060.83

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Solution

The fourth proportional to 28,870.31, 39,809.79 and 25,060.83 is: 34,556.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.31 : 39,809.79 = 25,060.83 : x
  2. Step 2: Convert to fraction form
    28,870.31/39,809.79 = 25,060.83/x
  3. Step 3: Cross multiply
    28,870.31x = 39,809.79 × 25,060.83
  4. Step 4: Simplify right side
    28,870.31x = 997,666,379.53
  5. Step 5: Solve for x
    x = 997,666,379.53/28,870.31
  6. Step 6: Final answer
    x = 34,556.84

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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.