Home / 25,756.52-38,659.75-12,438.92

Finding the Fourth Proportional to 25,756.52, 38,659.75 and 12,438.92

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Solution

The fourth proportional to 25,756.52, 38,659.75 and 12,438.92 is: 18,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,756.52 : 38,659.75 = 12,438.92 : x
  2. Step 2: Convert to fraction form
    25,756.52/38,659.75 = 12,438.92/x
  3. Step 3: Cross multiply
    25,756.52x = 38,659.75 × 12,438.92
  4. Step 4: Simplify right side
    25,756.52x = 480,885,603.02
  5. Step 5: Solve for x
    x = 480,885,603.02/25,756.52
  6. Step 6: Final answer
    x = 18,670.45

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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.