Home / 20,070.84-30,124.93-10,217.49

Finding the Fourth Proportional to 20,070.84, 30,124.93 and 10,217.49

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Solution

The fourth proportional to 20,070.84, 30,124.93 and 10,217.49 is: 15,335.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.84 : 30,124.93 = 10,217.49 : x
  2. Step 2: Convert to fraction form
    20,070.84/30,124.93 = 10,217.49/x
  3. Step 3: Cross multiply
    20,070.84x = 30,124.93 × 10,217.49
  4. Step 4: Simplify right side
    20,070.84x = 307,801,196.57
  5. Step 5: Solve for x
    x = 307,801,196.57/20,070.84
  6. Step 6: Final answer
    x = 15,335.74

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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.