Home / 14,030.64-20,981.99-10,475.28

Finding the Fourth Proportional to 14,030.64, 20,981.99 and 10,475.28

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Solution

The fourth proportional to 14,030.64, 20,981.99 and 10,475.28 is: 15,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,030.64 : 20,981.99 = 10,475.28 : x
  2. Step 2: Convert to fraction form
    14,030.64/20,981.99 = 10,475.28/x
  3. Step 3: Cross multiply
    14,030.64x = 20,981.99 × 10,475.28
  4. Step 4: Simplify right side
    14,030.64x = 219,792,246.40
  5. Step 5: Solve for x
    x = 219,792,246.40/14,030.64
  6. Step 6: Final answer
    x = 15,665.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.