Home / 37,378.84-51,582.12-20,383.20

Finding the Fourth Proportional to 37,378.84, 51,582.12 and 20,383.20

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Solution

The fourth proportional to 37,378.84, 51,582.12 and 20,383.20 is: 28,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,378.84 : 51,582.12 = 20,383.20 : x
  2. Step 2: Convert to fraction form
    37,378.84/51,582.12 = 20,383.20/x
  3. Step 3: Cross multiply
    37,378.84x = 51,582.12 × 20,383.20
  4. Step 4: Simplify right side
    37,378.84x = 1,051,408,668.38
  5. Step 5: Solve for x
    x = 1,051,408,668.38/37,378.84
  6. Step 6: Final answer
    x = 28,128.45

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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.