Home / 28,870.16-39,842.87-16,125.82

Finding the Fourth Proportional to 28,870.16, 39,842.87 and 16,125.82

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Solution

The fourth proportional to 28,870.16, 39,842.87 and 16,125.82 is: 22,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.16 : 39,842.87 = 16,125.82 : x
  2. Step 2: Convert to fraction form
    28,870.16/39,842.87 = 16,125.82/x
  3. Step 3: Cross multiply
    28,870.16x = 39,842.87 × 16,125.82
  4. Step 4: Simplify right side
    28,870.16x = 642,498,769.67
  5. Step 5: Solve for x
    x = 642,498,769.67/28,870.16
  6. Step 6: Final answer
    x = 22,254.77

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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.