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Finding the Fourth Proportional to 30,064.88, 45,113.32 and 16,918.18

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Solution

The fourth proportional to 30,064.88, 45,113.32 and 16,918.18 is: 25,386.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,064.88 : 45,113.32 = 16,918.18 : x
  2. Step 2: Convert to fraction form
    30,064.88/45,113.32 = 16,918.18/x
  3. Step 3: Cross multiply
    30,064.88x = 45,113.32 × 16,918.18
  4. Step 4: Simplify right side
    30,064.88x = 763,235,268.16
  5. Step 5: Solve for x
    x = 763,235,268.16/30,064.88
  6. Step 6: Final answer
    x = 25,386.27

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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.