Home / 20,568.17-30,852.25-4,985.79

Finding the Fourth Proportional to 20,568.17, 30,852.25 and 4,985.79

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Solution

The fourth proportional to 20,568.17, 30,852.25 and 4,985.79 is: 7,478.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.17 : 30,852.25 = 4,985.79 : x
  2. Step 2: Convert to fraction form
    20,568.17/30,852.25 = 4,985.79/x
  3. Step 3: Cross multiply
    20,568.17x = 30,852.25 × 4,985.79
  4. Step 4: Simplify right side
    20,568.17x = 153,822,827.06
  5. Step 5: Solve for x
    x = 153,822,827.06/20,568.17
  6. Step 6: Final answer
    x = 7,478.69

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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.