Home / 15,878.16-21,896.28-14,622.48

Finding the Fourth Proportional to 15,878.16, 21,896.28 and 14,622.48

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Solution

The fourth proportional to 15,878.16, 21,896.28 and 14,622.48 is: 20,164.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.16 : 21,896.28 = 14,622.48 : x
  2. Step 2: Convert to fraction form
    15,878.16/21,896.28 = 14,622.48/x
  3. Step 3: Cross multiply
    15,878.16x = 21,896.28 × 14,622.48
  4. Step 4: Simplify right side
    15,878.16x = 320,177,916.37
  5. Step 5: Solve for x
    x = 320,177,916.37/15,878.16
  6. Step 6: Final answer
    x = 20,164.67

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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.