Home / 25,699.28-35,445.43-22,120.32

Finding the Fourth Proportional to 25,699.28, 35,445.43 and 22,120.32

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Solution

The fourth proportional to 25,699.28, 35,445.43 and 22,120.32 is: 30,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,699.28 : 35,445.43 = 22,120.32 : x
  2. Step 2: Convert to fraction form
    25,699.28/35,445.43 = 22,120.32/x
  3. Step 3: Cross multiply
    25,699.28x = 35,445.43 × 22,120.32
  4. Step 4: Simplify right side
    25,699.28x = 784,064,414.71
  5. Step 5: Solve for x
    x = 784,064,414.71/25,699.28
  6. Step 6: Final answer
    x = 30,509.20

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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.