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Finding the Fourth Proportional to 30,407.12, 45,602.04 and 19,297.04

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Solution

The fourth proportional to 30,407.12, 45,602.04 and 19,297.04 is: 28,940.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407.12 : 45,602.04 = 19,297.04 : x
  2. Step 2: Convert to fraction form
    30,407.12/45,602.04 = 19,297.04/x
  3. Step 3: Cross multiply
    30,407.12x = 45,602.04 × 19,297.04
  4. Step 4: Simplify right side
    30,407.12x = 879,984,389.96
  5. Step 5: Solve for x
    x = 879,984,389.96/30,407.12
  6. Step 6: Final answer
    x = 28,940.08

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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.