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Finding the Fourth Proportional to 37,498.78, 51,748.30 and 20,503.11

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Solution

The fourth proportional to 37,498.78, 51,748.30 and 20,503.11 is: 28,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,498.78 : 51,748.30 = 20,503.11 : x
  2. Step 2: Convert to fraction form
    37,498.78/51,748.30 = 20,503.11/x
  3. Step 3: Cross multiply
    37,498.78x = 51,748.30 × 20,503.11
  4. Step 4: Simplify right side
    37,498.78x = 1,061,001,015.81
  5. Step 5: Solve for x
    x = 1,061,001,015.81/37,498.78
  6. Step 6: Final answer
    x = 28,294.28

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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.