Home / 25,401.34-35,070.98-15,855.77

Finding the Fourth Proportional to 25,401.34, 35,070.98 and 15,855.77

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Solution

The fourth proportional to 25,401.34, 35,070.98 and 15,855.77 is: 21,891.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,401.34 : 35,070.98 = 15,855.77 : x
  2. Step 2: Convert to fraction form
    25,401.34/35,070.98 = 15,855.77/x
  3. Step 3: Cross multiply
    25,401.34x = 35,070.98 × 15,855.77
  4. Step 4: Simplify right side
    25,401.34x = 556,077,137.92
  5. Step 5: Solve for x
    x = 556,077,137.92/25,401.34
  6. Step 6: Final answer
    x = 21,891.65

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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.