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Finding the Fourth Proportional to 25,165.60, 37,748.40 and 17,778.40

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Solution

The fourth proportional to 25,165.60, 37,748.40 and 17,778.40 is: 26,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,165.60 : 37,748.40 = 17,778.40 : x
  2. Step 2: Convert to fraction form
    25,165.60/37,748.40 = 17,778.40/x
  3. Step 3: Cross multiply
    25,165.60x = 37,748.40 × 17,778.40
  4. Step 4: Simplify right side
    25,165.60x = 671,106,154.56
  5. Step 5: Solve for x
    x = 671,106,154.56/25,165.60
  6. Step 6: Final answer
    x = 26,667.60

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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.