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Finding the Fourth Proportional to 30,405.02, 41,957.16 and 16,977.14

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Solution

The fourth proportional to 30,405.02, 41,957.16 and 16,977.14 is: 23,427.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.02 : 41,957.16 = 16,977.14 : x
  2. Step 2: Convert to fraction form
    30,405.02/41,957.16 = 16,977.14/x
  3. Step 3: Cross multiply
    30,405.02x = 41,957.16 × 16,977.14
  4. Step 4: Simplify right side
    30,405.02x = 712,312,579.32
  5. Step 5: Solve for x
    x = 712,312,579.32/30,405.02
  6. Step 6: Final answer
    x = 23,427.47

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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.