Home / 25,400.84-35,070.28-15,855.27

Finding the Fourth Proportional to 25,400.84, 35,070.28 and 15,855.27

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Solution

The fourth proportional to 25,400.84, 35,070.28 and 15,855.27 is: 21,890.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,400.84 : 35,070.28 = 15,855.27 : x
  2. Step 2: Convert to fraction form
    25,400.84/35,070.28 = 15,855.27/x
  3. Step 3: Cross multiply
    25,400.84x = 35,070.28 × 15,855.27
  4. Step 4: Simplify right side
    25,400.84x = 556,048,676.41
  5. Step 5: Solve for x
    x = 556,048,676.41/25,400.84
  6. Step 6: Final answer
    x = 21,890.96

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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.