Home / 18,827.30-25,981.28-10,443.80

Finding the Fourth Proportional to 18,827.30, 25,981.28 and 10,443.80

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Solution

The fourth proportional to 18,827.30, 25,981.28 and 10,443.80 is: 14,412.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.30 : 25,981.28 = 10,443.80 : x
  2. Step 2: Convert to fraction form
    18,827.30/25,981.28 = 10,443.80/x
  3. Step 3: Cross multiply
    18,827.30x = 25,981.28 × 10,443.80
  4. Step 4: Simplify right side
    18,827.30x = 271,343,292.06
  5. Step 5: Solve for x
    x = 271,343,292.06/18,827.30
  6. Step 6: Final answer
    x = 14,412.23

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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.