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Finding the Fourth Proportional to 25,442.75, 35,111.00 and 15,506.75

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Solution

The fourth proportional to 25,442.75, 35,111.00 and 15,506.75 is: 21,399.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,442.75 : 35,111.00 = 15,506.75 : x
  2. Step 2: Convert to fraction form
    25,442.75/35,111.00 = 15,506.75/x
  3. Step 3: Cross multiply
    25,442.75x = 35,111.00 × 15,506.75
  4. Step 4: Simplify right side
    25,442.75x = 544,457,421.72
  5. Step 5: Solve for x
    x = 544,457,421.72/25,442.75
  6. Step 6: Final answer
    x = 21,399.32

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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.