Home / 25,420.07-38,143.39-18,457.59

Finding the Fourth Proportional to 25,420.07, 38,143.39 and 18,457.59

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Solution

The fourth proportional to 25,420.07, 38,143.39 and 18,457.59 is: 27,696.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,420.07 : 38,143.39 = 18,457.59 : x
  2. Step 2: Convert to fraction form
    25,420.07/38,143.39 = 18,457.59/x
  3. Step 3: Cross multiply
    25,420.07x = 38,143.39 × 18,457.59
  4. Step 4: Simplify right side
    25,420.07x = 704,035,053.83
  5. Step 5: Solve for x
    x = 704,035,053.83/25,420.07
  6. Step 6: Final answer
    x = 27,696.04

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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.