Home / 25,630.31-38,457.75-13,943.51

Finding the Fourth Proportional to 25,630.31, 38,457.75 and 13,943.51

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Solution

The fourth proportional to 25,630.31, 38,457.75 and 13,943.51 is: 20,921.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,630.31 : 38,457.75 = 13,943.51 : x
  2. Step 2: Convert to fraction form
    25,630.31/38,457.75 = 13,943.51/x
  3. Step 3: Cross multiply
    25,630.31x = 38,457.75 × 13,943.51
  4. Step 4: Simplify right side
    25,630.31x = 536,236,021.70
  5. Step 5: Solve for x
    x = 536,236,021.70/25,630.31
  6. Step 6: Final answer
    x = 20,921.95

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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.