Home / 16,901.76-23,331-15,130.26

Finding the Fourth Proportional to 16,901.76, 23,331 and 15,130.26

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Solution

The fourth proportional to 16,901.76, 23,331 and 15,130.26 is: 20,885.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,901.76 : 23,331 = 15,130.26 : x
  2. Step 2: Convert to fraction form
    16,901.76/23,331 = 15,130.26/x
  3. Step 3: Cross multiply
    16,901.76x = 23,331 × 15,130.26
  4. Step 4: Simplify right side
    16,901.76x = 353,004,096.06
  5. Step 5: Solve for x
    x = 353,004,096.06/16,901.76
  6. Step 6: Final answer
    x = 20,885.64

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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.