Home / 25,153.36-34,722.28-16,978.74

Finding the Fourth Proportional to 25,153.36, 34,722.28 and 16,978.74

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Solution

The fourth proportional to 25,153.36, 34,722.28 and 16,978.74 is: 23,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,153.36 : 34,722.28 = 16,978.74 : x
  2. Step 2: Convert to fraction form
    25,153.36/34,722.28 = 16,978.74/x
  3. Step 3: Cross multiply
    25,153.36x = 34,722.28 × 16,978.74
  4. Step 4: Simplify right side
    25,153.36x = 589,540,564.33
  5. Step 5: Solve for x
    x = 589,540,564.33/25,153.36
  6. Step 6: Final answer
    x = 23,437.85

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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.