Home / 22,659.09-31,274.55-12,590.99

Finding the Fourth Proportional to 22,659.09, 31,274.55 and 12,590.99

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Solution

The fourth proportional to 22,659.09, 31,274.55 and 12,590.99 is: 17,378.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,659.09 : 31,274.55 = 12,590.99 : x
  2. Step 2: Convert to fraction form
    22,659.09/31,274.55 = 12,590.99/x
  3. Step 3: Cross multiply
    22,659.09x = 31,274.55 × 12,590.99
  4. Step 4: Simplify right side
    22,659.09x = 393,777,483.35
  5. Step 5: Solve for x
    x = 393,777,483.35/22,659.09
  6. Step 6: Final answer
    x = 17,378.34

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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.