Home / 28,023.03-38,671.02-15,447.78

Finding the Fourth Proportional to 28,023.03, 38,671.02 and 15,447.78

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Solution

The fourth proportional to 28,023.03, 38,671.02 and 15,447.78 is: 21,317.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.03 : 38,671.02 = 15,447.78 : x
  2. Step 2: Convert to fraction form
    28,023.03/38,671.02 = 15,447.78/x
  3. Step 3: Cross multiply
    28,023.03x = 38,671.02 × 15,447.78
  4. Step 4: Simplify right side
    28,023.03x = 597,381,409.34
  5. Step 5: Solve for x
    x = 597,381,409.34/28,023.03
  6. Step 6: Final answer
    x = 21,317.52

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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.