Home / 28,416.96-42,625.47-12,618.28

Finding the Fourth Proportional to 28,416.96, 42,625.47 and 12,618.28

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Solution

The fourth proportional to 28,416.96, 42,625.47 and 12,618.28 is: 18,927.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.96 : 42,625.47 = 12,618.28 : x
  2. Step 2: Convert to fraction form
    28,416.96/42,625.47 = 12,618.28/x
  3. Step 3: Cross multiply
    28,416.96x = 42,625.47 × 12,618.28
  4. Step 4: Simplify right side
    28,416.96x = 537,860,216.19
  5. Step 5: Solve for x
    x = 537,860,216.19/28,416.96
  6. Step 6: Final answer
    x = 18,927.44

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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.