Home / 38,427.04-53,029.60-21,432.38

Finding the Fourth Proportional to 38,427.04, 53,029.60 and 21,432.38

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Solution

The fourth proportional to 38,427.04, 53,029.60 and 21,432.38 is: 29,576.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,427.04 : 53,029.60 = 21,432.38 : x
  2. Step 2: Convert to fraction form
    38,427.04/53,029.60 = 21,432.38/x
  3. Step 3: Cross multiply
    38,427.04x = 53,029.60 × 21,432.38
  4. Step 4: Simplify right side
    38,427.04x = 1,136,550,538.45
  5. Step 5: Solve for x
    x = 1,136,550,538.45/38,427.04
  6. Step 6: Final answer
    x = 29,576.84

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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.