Home / 28,458.02-39,272.06-15,882.77

Finding the Fourth Proportional to 28,458.02, 39,272.06 and 15,882.77

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Solution

The fourth proportional to 28,458.02, 39,272.06 and 15,882.77 is: 21,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.02 : 39,272.06 = 15,882.77 : x
  2. Step 2: Convert to fraction form
    28,458.02/39,272.06 = 15,882.77/x
  3. Step 3: Cross multiply
    28,458.02x = 39,272.06 × 15,882.77
  4. Step 4: Simplify right side
    28,458.02x = 623,749,234.29
  5. Step 5: Solve for x
    x = 623,749,234.29/28,458.02
  6. Step 6: Final answer
    x = 21,918.22

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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.