Home / 28,782.06-39,719.07-16,210.86

Finding the Fourth Proportional to 28,782.06, 39,719.07 and 16,210.86

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Solution

The fourth proportional to 28,782.06, 39,719.07 and 16,210.86 is: 22,370.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.06 : 39,719.07 = 16,210.86 : x
  2. Step 2: Convert to fraction form
    28,782.06/39,719.07 = 16,210.86/x
  3. Step 3: Cross multiply
    28,782.06x = 39,719.07 × 16,210.86
  4. Step 4: Simplify right side
    28,782.06x = 643,880,283.10
  5. Step 5: Solve for x
    x = 643,880,283.10/28,782.06
  6. Step 6: Final answer
    x = 22,370.89

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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.