Home / 20,013.04-30,005.68-8,913.84

Finding the Fourth Proportional to 20,013.04, 30,005.68 and 8,913.84

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Solution

The fourth proportional to 20,013.04, 30,005.68 and 8,913.84 is: 13,364.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.04 : 30,005.68 = 8,913.84 : x
  2. Step 2: Convert to fraction form
    20,013.04/30,005.68 = 8,913.84/x
  3. Step 3: Cross multiply
    20,013.04x = 30,005.68 × 8,913.84
  4. Step 4: Simplify right side
    20,013.04x = 267,465,830.61
  5. Step 5: Solve for x
    x = 267,465,830.61/20,013.04
  6. Step 6: Final answer
    x = 13,364.58

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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.