Home / 16,985.28-23,440.29-9,431.74

Finding the Fourth Proportional to 16,985.28, 23,440.29 and 9,431.74

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Solution

The fourth proportional to 16,985.28, 23,440.29 and 9,431.74 is: 13,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,985.28 : 23,440.29 = 9,431.74 : x
  2. Step 2: Convert to fraction form
    16,985.28/23,440.29 = 9,431.74/x
  3. Step 3: Cross multiply
    16,985.28x = 23,440.29 × 9,431.74
  4. Step 4: Simplify right side
    16,985.28x = 221,082,662.20
  5. Step 5: Solve for x
    x = 221,082,662.20/16,985.28
  6. Step 6: Final answer
    x = 13,016.13

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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.