Home / 28,263.02-39,002.94-15,687.74

Finding the Fourth Proportional to 28,263.02, 39,002.94 and 15,687.74

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Solution

The fourth proportional to 28,263.02, 39,002.94 and 15,687.74 is: 21,649.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.02 : 39,002.94 = 15,687.74 : x
  2. Step 2: Convert to fraction form
    28,263.02/39,002.94 = 15,687.74/x
  3. Step 3: Cross multiply
    28,263.02x = 39,002.94 × 15,687.74
  4. Step 4: Simplify right side
    28,263.02x = 611,867,981.96
  5. Step 5: Solve for x
    x = 611,867,981.96/28,263.02
  6. Step 6: Final answer
    x = 21,649.07

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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.