Home / 30,068.69-41,528.90-20,492.18

Finding the Fourth Proportional to 30,068.69, 41,528.90 and 20,492.18

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Solution

The fourth proportional to 30,068.69, 41,528.90 and 20,492.18 is: 28,302.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.69 : 41,528.90 = 20,492.18 : x
  2. Step 2: Convert to fraction form
    30,068.69/41,528.90 = 20,492.18/x
  3. Step 3: Cross multiply
    30,068.69x = 41,528.90 × 20,492.18
  4. Step 4: Simplify right side
    30,068.69x = 851,017,383.90
  5. Step 5: Solve for x
    x = 851,017,383.90/30,068.69
  6. Step 6: Final answer
    x = 28,302.45

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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.