Home / 25,453.40-38,148.67-18,457.43

Finding the Fourth Proportional to 25,453.40, 38,148.67 and 18,457.43

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Solution

The fourth proportional to 25,453.40, 38,148.67 and 18,457.43 is: 27,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,453.40 : 38,148.67 = 18,457.43 : x
  2. Step 2: Convert to fraction form
    25,453.40/38,148.67 = 18,457.43/x
  3. Step 3: Cross multiply
    25,453.40x = 38,148.67 × 18,457.43
  4. Step 4: Simplify right side
    25,453.40x = 704,126,406.12
  5. Step 5: Solve for x
    x = 704,126,406.12/25,453.40
  6. Step 6: Final answer
    x = 27,663.35

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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.