Home / 28,280.02-39,026.49-15,704.77

Finding the Fourth Proportional to 28,280.02, 39,026.49 and 15,704.77

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Solution

The fourth proportional to 28,280.02, 39,026.49 and 15,704.77 is: 21,672.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,280.02 : 39,026.49 = 15,704.77 : x
  2. Step 2: Convert to fraction form
    28,280.02/39,026.49 = 15,704.77/x
  3. Step 3: Cross multiply
    28,280.02x = 39,026.49 × 15,704.77
  4. Step 4: Simplify right side
    28,280.02x = 612,902,049.36
  5. Step 5: Solve for x
    x = 612,902,049.36/28,280.02
  6. Step 6: Final answer
    x = 21,672.62

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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.