Home / 22,783.22-31,440.80-12,711.06

Finding the Fourth Proportional to 22,783.22, 31,440.80 and 12,711.06

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Solution

The fourth proportional to 22,783.22, 31,440.80 and 12,711.06 is: 17,541.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,783.22 : 31,440.80 = 12,711.06 : x
  2. Step 2: Convert to fraction form
    22,783.22/31,440.80 = 12,711.06/x
  3. Step 3: Cross multiply
    22,783.22x = 31,440.80 × 12,711.06
  4. Step 4: Simplify right side
    22,783.22x = 399,645,895.25
  5. Step 5: Solve for x
    x = 399,645,895.25/22,783.22
  6. Step 6: Final answer
    x = 17,541.24

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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.