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Finding the Fourth Proportional to 30,019.44, 45,038.88 and 14,435.04

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Solution

The fourth proportional to 30,019.44, 45,038.88 and 14,435.04 is: 21,657.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,019.44 : 45,038.88 = 14,435.04 : x
  2. Step 2: Convert to fraction form
    30,019.44/45,038.88 = 14,435.04/x
  3. Step 3: Cross multiply
    30,019.44x = 45,038.88 × 14,435.04
  4. Step 4: Simplify right side
    30,019.44x = 650,138,034.36
  5. Step 5: Solve for x
    x = 650,138,034.36/30,019.44
  6. Step 6: Final answer
    x = 21,657.23

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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.