Home / 22,637.89-31,236.94-12,566.40

Finding the Fourth Proportional to 22,637.89, 31,236.94 and 12,566.40

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Solution

The fourth proportional to 22,637.89, 31,236.94 and 12,566.40 is: 17,339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,637.89 : 31,236.94 = 12,566.40 : x
  2. Step 2: Convert to fraction form
    22,637.89/31,236.94 = 12,566.40/x
  3. Step 3: Cross multiply
    22,637.89x = 31,236.94 × 12,566.40
  4. Step 4: Simplify right side
    22,637.89x = 392,535,882.82
  5. Step 5: Solve for x
    x = 392,535,882.82/22,637.89
  6. Step 6: Final answer
    x = 17,339.77

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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.