Home / 20,208.63-30,298.86-8,957.88

Finding the Fourth Proportional to 20,208.63, 30,298.86 and 8,957.88

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Solution

The fourth proportional to 20,208.63, 30,298.86 and 8,957.88 is: 13,430.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.63 : 30,298.86 = 8,957.88 : x
  2. Step 2: Convert to fraction form
    20,208.63/30,298.86 = 8,957.88/x
  3. Step 3: Cross multiply
    20,208.63x = 30,298.86 × 8,957.88
  4. Step 4: Simplify right side
    20,208.63x = 271,413,552.02
  5. Step 5: Solve for x
    x = 271,413,552.02/20,208.63
  6. Step 6: Final answer
    x = 13,430.58

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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.