Home / 25,776.64-38,667.36-8,242.32

Finding the Fourth Proportional to 25,776.64, 38,667.36 and 8,242.32

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Solution

The fourth proportional to 25,776.64, 38,667.36 and 8,242.32 is: 12,364.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,776.64 : 38,667.36 = 8,242.32 : x
  2. Step 2: Convert to fraction form
    25,776.64/38,667.36 = 8,242.32/x
  3. Step 3: Cross multiply
    25,776.64x = 38,667.36 × 8,242.32
  4. Step 4: Simplify right side
    25,776.64x = 318,708,754.68
  5. Step 5: Solve for x
    x = 318,708,754.68/25,776.64
  6. Step 6: Final answer
    x = 12,364.25

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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.