Home / 22,818.08-31,492.08-13,389.68

Finding the Fourth Proportional to 22,818.08, 31,492.08 and 13,389.68

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Solution

The fourth proportional to 22,818.08, 31,492.08 and 13,389.68 is: 18,479.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,818.08 : 31,492.08 = 13,389.68 : x
  2. Step 2: Convert to fraction form
    22,818.08/31,492.08 = 13,389.68/x
  3. Step 3: Cross multiply
    22,818.08x = 31,492.08 × 13,389.68
  4. Step 4: Simplify right side
    22,818.08x = 421,668,873.73
  5. Step 5: Solve for x
    x = 421,668,873.73/22,818.08
  6. Step 6: Final answer
    x = 18,479.59

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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.