Home / 30,886.38-42,629.36-17,457.80

Finding the Fourth Proportional to 30,886.38, 42,629.36 and 17,457.80

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Solution

The fourth proportional to 30,886.38, 42,629.36 and 17,457.80 is: 24,095.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886.38 : 42,629.36 = 17,457.80 : x
  2. Step 2: Convert to fraction form
    30,886.38/42,629.36 = 17,457.80/x
  3. Step 3: Cross multiply
    30,886.38x = 42,629.36 × 17,457.80
  4. Step 4: Simplify right side
    30,886.38x = 744,214,540.57
  5. Step 5: Solve for x
    x = 744,214,540.57/30,886.38
  6. Step 6: Final answer
    x = 24,095.23

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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.