Home / 25,621.95-35,344.85-20,847.23

Finding the Fourth Proportional to 25,621.95, 35,344.85 and 20,847.23

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Solution

The fourth proportional to 25,621.95, 35,344.85 and 20,847.23 is: 28,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,621.95 : 35,344.85 = 20,847.23 : x
  2. Step 2: Convert to fraction form
    25,621.95/35,344.85 = 20,847.23/x
  3. Step 3: Cross multiply
    25,621.95x = 35,344.85 × 20,847.23
  4. Step 4: Simplify right side
    25,621.95x = 736,842,068.85
  5. Step 5: Solve for x
    x = 736,842,068.85/25,621.95
  6. Step 6: Final answer
    x = 28,758.23

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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.