Home / 25,403.96-38,130.53-12,265.55

Finding the Fourth Proportional to 25,403.96, 38,130.53 and 12,265.55

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Solution

The fourth proportional to 25,403.96, 38,130.53 and 12,265.55 is: 18,410.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,403.96 : 38,130.53 = 12,265.55 : x
  2. Step 2: Convert to fraction form
    25,403.96/38,130.53 = 12,265.55/x
  3. Step 3: Cross multiply
    25,403.96x = 38,130.53 × 12,265.55
  4. Step 4: Simplify right side
    25,403.96x = 467,691,670.26
  5. Step 5: Solve for x
    x = 467,691,670.26/25,403.96
  6. Step 6: Final answer
    x = 18,410.19

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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.