Home / 23,099.40-31,880.76-15,164.64

Finding the Fourth Proportional to 23,099.40, 31,880.76 and 15,164.64

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Solution

The fourth proportional to 23,099.40, 31,880.76 and 15,164.64 is: 20,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,099.40 : 31,880.76 = 15,164.64 : x
  2. Step 2: Convert to fraction form
    23,099.40/31,880.76 = 15,164.64/x
  3. Step 3: Cross multiply
    23,099.40x = 31,880.76 × 15,164.64
  4. Step 4: Simplify right side
    23,099.40x = 483,460,248.33
  5. Step 5: Solve for x
    x = 483,460,248.33/23,099.40
  6. Step 6: Final answer
    x = 20,929.56

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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.