Home / 18,429.30-25,432.43-10,045.80

Finding the Fourth Proportional to 18,429.30, 25,432.43 and 10,045.80

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Solution

The fourth proportional to 18,429.30, 25,432.43 and 10,045.80 is: 13,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.30 : 25,432.43 = 10,045.80 : x
  2. Step 2: Convert to fraction form
    18,429.30/25,432.43 = 10,045.80/x
  3. Step 3: Cross multiply
    18,429.30x = 25,432.43 × 10,045.80
  4. Step 4: Simplify right side
    18,429.30x = 255,489,130.41
  5. Step 5: Solve for x
    x = 255,489,130.41/18,429.30
  6. Step 6: Final answer
    x = 13,863.20

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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.