Home / 20,425.74-28,186.08-18,752.68

Finding the Fourth Proportional to 20,425.74, 28,186.08 and 18,752.68

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Solution

The fourth proportional to 20,425.74, 28,186.08 and 18,752.68 is: 25,877.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425.74 : 28,186.08 = 18,752.68 : x
  2. Step 2: Convert to fraction form
    20,425.74/28,186.08 = 18,752.68/x
  3. Step 3: Cross multiply
    20,425.74x = 28,186.08 × 18,752.68
  4. Step 4: Simplify right side
    20,425.74x = 528,564,503.60
  5. Step 5: Solve for x
    x = 528,564,503.60/20,425.74
  6. Step 6: Final answer
    x = 25,877.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.