Home / 21,219.19-31,955.73-19,327.52

Finding the Fourth Proportional to 21,219.19, 31,955.73 and 19,327.52

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Solution

The fourth proportional to 21,219.19, 31,955.73 and 19,327.52 is: 29,106.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219.19 : 31,955.73 = 19,327.52 : x
  2. Step 2: Convert to fraction form
    21,219.19/31,955.73 = 19,327.52/x
  3. Step 3: Cross multiply
    21,219.19x = 31,955.73 × 19,327.52
  4. Step 4: Simplify right side
    21,219.19x = 617,624,962.37
  5. Step 5: Solve for x
    x = 617,624,962.37/21,219.19
  6. Step 6: Final answer
    x = 29,106.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.