Home / 28,038.75-42,037.26-13,239.24

Finding the Fourth Proportional to 28,038.75, 42,037.26 and 13,239.24

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Solution

The fourth proportional to 28,038.75, 42,037.26 and 13,239.24 is: 19,849.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.75 : 42,037.26 = 13,239.24 : x
  2. Step 2: Convert to fraction form
    28,038.75/42,037.26 = 13,239.24/x
  3. Step 3: Cross multiply
    28,038.75x = 42,037.26 × 13,239.24
  4. Step 4: Simplify right side
    28,038.75x = 556,541,374.08
  5. Step 5: Solve for x
    x = 556,541,374.08/28,038.75
  6. Step 6: Final answer
    x = 19,849.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.