Home / 38,434.44-53,039.60-21,438.24

Finding the Fourth Proportional to 38,434.44, 53,039.60 and 21,438.24

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Solution

The fourth proportional to 38,434.44, 53,039.60 and 21,438.24 is: 29,584.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.44 : 53,039.60 = 21,438.24 : x
  2. Step 2: Convert to fraction form
    38,434.44/53,039.60 = 21,438.24/x
  3. Step 3: Cross multiply
    38,434.44x = 53,039.60 × 21,438.24
  4. Step 4: Simplify right side
    38,434.44x = 1,137,075,807.25
  5. Step 5: Solve for x
    x = 1,137,075,807.25/38,434.44
  6. Step 6: Final answer
    x = 29,584.82

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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.