Home / 23,117.90-31,902.54-13,563.55

Finding the Fourth Proportional to 23,117.90, 31,902.54 and 13,563.55

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Solution

The fourth proportional to 23,117.90, 31,902.54 and 13,563.55 is: 18,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,117.90 : 31,902.54 = 13,563.55 : x
  2. Step 2: Convert to fraction form
    23,117.90/31,902.54 = 13,563.55/x
  3. Step 3: Cross multiply
    23,117.90x = 31,902.54 × 13,563.55
  4. Step 4: Simplify right side
    23,117.90x = 432,711,536.90
  5. Step 5: Solve for x
    x = 432,711,536.90/23,117.90
  6. Step 6: Final answer
    x = 18,717.60

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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.