Home / 23,119.92-31,913.46-13,688.01

Finding the Fourth Proportional to 23,119.92, 31,913.46 and 13,688.01

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Solution

The fourth proportional to 23,119.92, 31,913.46 and 13,688.01 is: 18,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,119.92 : 31,913.46 = 13,688.01 : x
  2. Step 2: Convert to fraction form
    23,119.92/31,913.46 = 13,688.01/x
  3. Step 3: Cross multiply
    23,119.92x = 31,913.46 × 13,688.01
  4. Step 4: Simplify right side
    23,119.92x = 436,831,759.61
  5. Step 5: Solve for x
    x = 436,831,759.61/23,119.92
  6. Step 6: Final answer
    x = 18,894.17

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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.