Home / 28,440.15-42,577.54-16,557.72

Finding the Fourth Proportional to 28,440.15, 42,577.54 and 16,557.72

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Solution

The fourth proportional to 28,440.15, 42,577.54 and 16,557.72 is: 24,788.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,440.15 : 42,577.54 = 16,557.72 : x
  2. Step 2: Convert to fraction form
    28,440.15/42,577.54 = 16,557.72/x
  3. Step 3: Cross multiply
    28,440.15x = 42,577.54 × 16,557.72
  4. Step 4: Simplify right side
    28,440.15x = 704,986,985.61
  5. Step 5: Solve for x
    x = 704,986,985.61/28,440.15
  6. Step 6: Final answer
    x = 24,788.44

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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.