Home / 25,905.40-38,877.30-17,137.40

Finding the Fourth Proportional to 25,905.40, 38,877.30 and 17,137.40

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Solution

The fourth proportional to 25,905.40, 38,877.30 and 17,137.40 is: 25,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.40 : 38,877.30 = 17,137.40 : x
  2. Step 2: Convert to fraction form
    25,905.40/38,877.30 = 17,137.40/x
  3. Step 3: Cross multiply
    25,905.40x = 38,877.30 × 17,137.40
  4. Step 4: Simplify right side
    25,905.40x = 666,255,841.02
  5. Step 5: Solve for x
    x = 666,255,841.02/25,905.40
  6. Step 6: Final answer
    x = 25,718.80

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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.