Home / 16,870.43-23,299.30-15,015.12

Finding the Fourth Proportional to 16,870.43, 23,299.30 and 15,015.12

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Solution

The fourth proportional to 16,870.43, 23,299.30 and 15,015.12 is: 20,736.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,870.43 : 23,299.30 = 15,015.12 : x
  2. Step 2: Convert to fraction form
    16,870.43/23,299.30 = 15,015.12/x
  3. Step 3: Cross multiply
    16,870.43x = 23,299.30 × 15,015.12
  4. Step 4: Simplify right side
    16,870.43x = 349,841,763.41
  5. Step 5: Solve for x
    x = 349,841,763.41/16,870.43
  6. Step 6: Final answer
    x = 20,736.98

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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.