Home / 30,478.63-42,068.96-17,734.27

Finding the Fourth Proportional to 30,478.63, 42,068.96 and 17,734.27

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Solution

The fourth proportional to 30,478.63, 42,068.96 and 17,734.27 is: 24,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,478.63 : 42,068.96 = 17,734.27 : x
  2. Step 2: Convert to fraction form
    30,478.63/42,068.96 = 17,734.27/x
  3. Step 3: Cross multiply
    30,478.63x = 42,068.96 × 17,734.27
  4. Step 4: Simplify right side
    30,478.63x = 746,062,295.26
  5. Step 5: Solve for x
    x = 746,062,295.26/30,478.63
  6. Step 6: Final answer
    x = 24,478.21

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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.