Home / 25,725.51-38,560.93-12,390.19

Finding the Fourth Proportional to 25,725.51, 38,560.93 and 12,390.19

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Solution

The fourth proportional to 25,725.51, 38,560.93 and 12,390.19 is: 18,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,725.51 : 38,560.93 = 12,390.19 : x
  2. Step 2: Convert to fraction form
    25,725.51/38,560.93 = 12,390.19/x
  3. Step 3: Cross multiply
    25,725.51x = 38,560.93 × 12,390.19
  4. Step 4: Simplify right side
    25,725.51x = 477,777,249.28
  5. Step 5: Solve for x
    x = 477,777,249.28/25,725.51
  6. Step 6: Final answer
    x = 18,572.12

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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.