Home / 25,457.31-38,213.90-20,225.94

Finding the Fourth Proportional to 25,457.31, 38,213.90 and 20,225.94

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Solution

The fourth proportional to 25,457.31, 38,213.90 and 20,225.94 is: 30,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,457.31 : 38,213.90 = 20,225.94 : x
  2. Step 2: Convert to fraction form
    25,457.31/38,213.90 = 20,225.94/x
  3. Step 3: Cross multiply
    25,457.31x = 38,213.90 × 20,225.94
  4. Step 4: Simplify right side
    25,457.31x = 772,911,947.44
  5. Step 5: Solve for x
    x = 772,911,947.44/25,457.31
  6. Step 6: Final answer
    x = 30,361.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.