Home / 25,599.62-35,298.21-20,806.45

Finding the Fourth Proportional to 25,599.62, 35,298.21 and 20,806.45

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Solution

The fourth proportional to 25,599.62, 35,298.21 and 20,806.45 is: 28,689.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,599.62 : 35,298.21 = 20,806.45 : x
  2. Step 2: Convert to fraction form
    25,599.62/35,298.21 = 20,806.45/x
  3. Step 3: Cross multiply
    25,599.62x = 35,298.21 × 20,806.45
  4. Step 4: Simplify right side
    25,599.62x = 734,430,264.96
  5. Step 5: Solve for x
    x = 734,430,264.96/25,599.62
  6. Step 6: Final answer
    x = 28,689.11

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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.