Home / 22,783.63-31,442.31-12,712.95

Finding the Fourth Proportional to 22,783.63, 31,442.31 and 12,712.95

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Solution

The fourth proportional to 22,783.63, 31,442.31 and 12,712.95 is: 17,544.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,783.63 : 31,442.31 = 12,712.95 : x
  2. Step 2: Convert to fraction form
    22,783.63/31,442.31 = 12,712.95/x
  3. Step 3: Cross multiply
    22,783.63x = 31,442.31 × 12,712.95
  4. Step 4: Simplify right side
    22,783.63x = 399,724,514.91
  5. Step 5: Solve for x
    x = 399,724,514.91/22,783.63
  6. Step 6: Final answer
    x = 17,544.37

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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.