Home / 20,802.34-28,707.43-11,849.72

Finding the Fourth Proportional to 20,802.34, 28,707.43 and 11,849.72

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Solution

The fourth proportional to 20,802.34, 28,707.43 and 11,849.72 is: 16,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.34 : 28,707.43 = 11,849.72 : x
  2. Step 2: Convert to fraction form
    20,802.34/28,707.43 = 11,849.72/x
  3. Step 3: Cross multiply
    20,802.34x = 28,707.43 × 11,849.72
  4. Step 4: Simplify right side
    20,802.34x = 340,174,804.63
  5. Step 5: Solve for x
    x = 340,174,804.63/20,802.34
  6. Step 6: Final answer
    x = 16,352.72

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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.