Home / 25,416.72-38,102.32-12,929.76

Finding the Fourth Proportional to 25,416.72, 38,102.32 and 12,929.76

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Solution

The fourth proportional to 25,416.72, 38,102.32 and 12,929.76 is: 19,383.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,416.72 : 38,102.32 = 12,929.76 : x
  2. Step 2: Convert to fraction form
    25,416.72/38,102.32 = 12,929.76/x
  3. Step 3: Cross multiply
    25,416.72x = 38,102.32 × 12,929.76
  4. Step 4: Simplify right side
    25,416.72x = 492,653,853.04
  5. Step 5: Solve for x
    x = 492,653,853.04/25,416.72
  6. Step 6: Final answer
    x = 19,383.06

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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.