Home / 22,784.48-31,429.95-13,351.22

Finding the Fourth Proportional to 22,784.48, 31,429.95 and 13,351.22

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Solution

The fourth proportional to 22,784.48, 31,429.95 and 13,351.22 is: 18,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,784.48 : 31,429.95 = 13,351.22 : x
  2. Step 2: Convert to fraction form
    22,784.48/31,429.95 = 13,351.22/x
  3. Step 3: Cross multiply
    22,784.48x = 31,429.95 × 13,351.22
  4. Step 4: Simplify right side
    22,784.48x = 419,628,182.95
  5. Step 5: Solve for x
    x = 419,628,182.95/22,784.48
  6. Step 6: Final answer
    x = 18,417.28

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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.