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Finding the Fourth Proportional to 25,970.98, 38,925.71 and 11,919.17

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Solution

The fourth proportional to 25,970.98, 38,925.71 and 11,919.17 is: 17,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,970.98 : 38,925.71 = 11,919.17 : x
  2. Step 2: Convert to fraction form
    25,970.98/38,925.71 = 11,919.17/x
  3. Step 3: Cross multiply
    25,970.98x = 38,925.71 × 11,919.17
  4. Step 4: Simplify right side
    25,970.98x = 463,961,900.64
  5. Step 5: Solve for x
    x = 463,961,900.64/25,970.98
  6. Step 6: Final answer
    x = 17,864.63

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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.