Home / 30,047.12-45,042.78-14,259.56

Finding the Fourth Proportional to 30,047.12, 45,042.78 and 14,259.56

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Solution

The fourth proportional to 30,047.12, 45,042.78 and 14,259.56 is: 21,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,047.12 : 45,042.78 = 14,259.56 : x
  2. Step 2: Convert to fraction form
    30,047.12/45,042.78 = 14,259.56/x
  3. Step 3: Cross multiply
    30,047.12x = 45,042.78 × 14,259.56
  4. Step 4: Simplify right side
    30,047.12x = 642,290,223.98
  5. Step 5: Solve for x
    x = 642,290,223.98/30,047.12
  6. Step 6: Final answer
    x = 21,376.10

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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.