Home / 23,056.78-31,816.90-12,984.63

Finding the Fourth Proportional to 23,056.78, 31,816.90 and 12,984.63

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Solution

The fourth proportional to 23,056.78, 31,816.90 and 12,984.63 is: 17,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,056.78 : 31,816.90 = 12,984.63 : x
  2. Step 2: Convert to fraction form
    23,056.78/31,816.90 = 12,984.63/x
  3. Step 3: Cross multiply
    23,056.78x = 31,816.90 × 12,984.63
  4. Step 4: Simplify right side
    23,056.78x = 413,130,674.25
  5. Step 5: Solve for x
    x = 413,130,674.25/23,056.78
  6. Step 6: Final answer
    x = 17,917.97

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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.