Home / 28,278.93-42,353.80-13,498.25

Finding the Fourth Proportional to 28,278.93, 42,353.80 and 13,498.25

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Solution

The fourth proportional to 28,278.93, 42,353.80 and 13,498.25 is: 20,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.93 : 42,353.80 = 13,498.25 : x
  2. Step 2: Convert to fraction form
    28,278.93/42,353.80 = 13,498.25/x
  3. Step 3: Cross multiply
    28,278.93x = 42,353.80 × 13,498.25
  4. Step 4: Simplify right side
    28,278.93x = 571,702,252.99
  5. Step 5: Solve for x
    x = 571,702,252.99/28,278.93
  6. Step 6: Final answer
    x = 20,216.54

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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.