Home / 20,356.96-30,509.52-10,973.92

Finding the Fourth Proportional to 20,356.96, 30,509.52 and 10,973.92

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Solution

The fourth proportional to 20,356.96, 30,509.52 and 10,973.92 is: 16,446.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.96 : 30,509.52 = 10,973.92 : x
  2. Step 2: Convert to fraction form
    20,356.96/30,509.52 = 10,973.92/x
  3. Step 3: Cross multiply
    20,356.96x = 30,509.52 × 10,973.92
  4. Step 4: Simplify right side
    20,356.96x = 334,809,031.72
  5. Step 5: Solve for x
    x = 334,809,031.72/20,356.96
  6. Step 6: Final answer
    x = 16,446.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.