Home / 16,981.68-23,428.29-12,516.11

Finding the Fourth Proportional to 16,981.68, 23,428.29 and 12,516.11

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Solution

The fourth proportional to 16,981.68, 23,428.29 and 12,516.11 is: 17,267.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.68 : 23,428.29 = 12,516.11 : x
  2. Step 2: Convert to fraction form
    16,981.68/23,428.29 = 12,516.11/x
  3. Step 3: Cross multiply
    16,981.68x = 23,428.29 × 12,516.11
  4. Step 4: Simplify right side
    16,981.68x = 293,230,875.03
  5. Step 5: Solve for x
    x = 293,230,875.03/16,981.68
  6. Step 6: Final answer
    x = 17,267.48

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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.