Home / 28,782.57-39,719.34-16,035.74

Finding the Fourth Proportional to 28,782.57, 39,719.34 and 16,035.74

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Solution

The fourth proportional to 28,782.57, 39,719.34 and 16,035.74 is: 22,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.57 : 39,719.34 = 16,035.74 : x
  2. Step 2: Convert to fraction form
    28,782.57/39,719.34 = 16,035.74/x
  3. Step 3: Cross multiply
    28,782.57x = 39,719.34 × 16,035.74
  4. Step 4: Simplify right side
    28,782.57x = 636,928,810.61
  5. Step 5: Solve for x
    x = 636,928,810.61/28,782.57
  6. Step 6: Final answer
    x = 22,128.98

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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.