Home / 30,886.57-42,623.58-16,739.38

Finding the Fourth Proportional to 30,886.57, 42,623.58 and 16,739.38

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Solution

The fourth proportional to 30,886.57, 42,623.58 and 16,739.38 is: 23,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886.57 : 42,623.58 = 16,739.38 : x
  2. Step 2: Convert to fraction form
    30,886.57/42,623.58 = 16,739.38/x
  3. Step 3: Cross multiply
    30,886.57x = 42,623.58 × 16,739.38
  4. Step 4: Simplify right side
    30,886.57x = 713,492,302.58
  5. Step 5: Solve for x
    x = 713,492,302.58/30,886.57
  6. Step 6: Final answer
    x = 23,100.41

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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.