Home / 28,259.75-42,359.54-13,437.33

Finding the Fourth Proportional to 28,259.75, 42,359.54 and 13,437.33

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Solution

The fourth proportional to 28,259.75, 42,359.54 and 13,437.33 is: 20,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.75 : 42,359.54 = 13,437.33 : x
  2. Step 2: Convert to fraction form
    28,259.75/42,359.54 = 13,437.33/x
  3. Step 3: Cross multiply
    28,259.75x = 42,359.54 × 13,437.33
  4. Step 4: Simplify right side
    28,259.75x = 569,199,050.44
  5. Step 5: Solve for x
    x = 569,199,050.44/28,259.75
  6. Step 6: Final answer
    x = 20,141.69

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1.5x scale

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.