Home / 28,776.12-39,708.12-16,030.02

Finding the Fourth Proportional to 28,776.12, 39,708.12 and 16,030.02

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Solution

The fourth proportional to 28,776.12, 39,708.12 and 16,030.02 is: 22,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.12 : 39,708.12 = 16,030.02 : x
  2. Step 2: Convert to fraction form
    28,776.12/39,708.12 = 16,030.02/x
  3. Step 3: Cross multiply
    28,776.12x = 39,708.12 × 16,030.02
  4. Step 4: Simplify right side
    28,776.12x = 636,521,957.76
  5. Step 5: Solve for x
    x = 636,521,957.76/28,776.12
  6. Step 6: Final answer
    x = 22,119.80

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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.