Home / 21,806.96-30,095.16-12,376.13

Finding the Fourth Proportional to 21,806.96, 30,095.16 and 12,376.13

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Solution

The fourth proportional to 21,806.96, 30,095.16 and 12,376.13 is: 17,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,806.96 : 30,095.16 = 12,376.13 : x
  2. Step 2: Convert to fraction form
    21,806.96/30,095.16 = 12,376.13/x
  3. Step 3: Cross multiply
    21,806.96x = 30,095.16 × 12,376.13
  4. Step 4: Simplify right side
    21,806.96x = 372,461,612.53
  5. Step 5: Solve for x
    x = 372,461,612.53/21,806.96
  6. Step 6: Final answer
    x = 17,079.94

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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.