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Finding the Fourth Proportional to 25,750.10, 35,530.00 and 15,671.78

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Solution

The fourth proportional to 25,750.10, 35,530.00 and 15,671.78 is: 21,623.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,750.10 : 35,530.00 = 15,671.78 : x
  2. Step 2: Convert to fraction form
    25,750.10/35,530.00 = 15,671.78/x
  3. Step 3: Cross multiply
    25,750.10x = 35,530.00 × 15,671.78
  4. Step 4: Simplify right side
    25,750.10x = 556,818,393.05
  5. Step 5: Solve for x
    x = 556,818,393.05/25,750.10
  6. Step 6: Final answer
    x = 21,623.94

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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.