Home / 25,721.20-35,499.04-16,290.64

Finding the Fourth Proportional to 25,721.20, 35,499.04 and 16,290.64

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Solution

The fourth proportional to 25,721.20, 35,499.04 and 16,290.64 is: 22,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721.20 : 35,499.04 = 16,290.64 : x
  2. Step 2: Convert to fraction form
    25,721.20/35,499.04 = 16,290.64/x
  3. Step 3: Cross multiply
    25,721.20x = 35,499.04 × 16,290.64
  4. Step 4: Simplify right side
    25,721.20x = 578,302,080.99
  5. Step 5: Solve for x
    x = 578,302,080.99/25,721.20
  6. Step 6: Final answer
    x = 22,483.48

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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.