Home / 30,111.87-45,133.96-14,303.97

Finding the Fourth Proportional to 30,111.87, 45,133.96 and 14,303.97

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Solution

The fourth proportional to 30,111.87, 45,133.96 and 14,303.97 is: 21,439.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,111.87 : 45,133.96 = 14,303.97 : x
  2. Step 2: Convert to fraction form
    30,111.87/45,133.96 = 14,303.97/x
  3. Step 3: Cross multiply
    30,111.87x = 45,133.96 × 14,303.97
  4. Step 4: Simplify right side
    30,111.87x = 645,594,809.82
  5. Step 5: Solve for x
    x = 645,594,809.82/30,111.87
  6. Step 6: Final answer
    x = 21,439.88

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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.