Home / 28,214.22-42,328.35-8,492.34

Finding the Fourth Proportional to 28,214.22, 42,328.35 and 8,492.34

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Solution

The fourth proportional to 28,214.22, 42,328.35 and 8,492.34 is: 12,740.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,214.22 : 42,328.35 = 8,492.34 : x
  2. Step 2: Convert to fraction form
    28,214.22/42,328.35 = 8,492.34/x
  3. Step 3: Cross multiply
    28,214.22x = 42,328.35 × 8,492.34
  4. Step 4: Simplify right side
    28,214.22x = 359,466,739.84
  5. Step 5: Solve for x
    x = 359,466,739.84/28,214.22
  6. Step 6: Final answer
    x = 12,740.62

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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.