Home / 22,904.96-31,612.80-12,968.96

Finding the Fourth Proportional to 22,904.96, 31,612.80 and 12,968.96

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Solution

The fourth proportional to 22,904.96, 31,612.80 and 12,968.96 is: 17,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,904.96 : 31,612.80 = 12,968.96 : x
  2. Step 2: Convert to fraction form
    22,904.96/31,612.80 = 12,968.96/x
  3. Step 3: Cross multiply
    22,904.96x = 31,612.80 × 12,968.96
  4. Step 4: Simplify right side
    22,904.96x = 409,985,138.69
  5. Step 5: Solve for x
    x = 409,985,138.69/22,904.96
  6. Step 6: Final answer
    x = 17,899.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.