Home / 30,106.71-45,161.08-14,303.61

Finding the Fourth Proportional to 30,106.71, 45,161.08 and 14,303.61

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Solution

The fourth proportional to 30,106.71, 45,161.08 and 14,303.61 is: 21,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,106.71 : 45,161.08 = 14,303.61 : x
  2. Step 2: Convert to fraction form
    30,106.71/45,161.08 = 14,303.61/x
  3. Step 3: Cross multiply
    30,106.71x = 45,161.08 × 14,303.61
  4. Step 4: Simplify right side
    30,106.71x = 645,966,439.74
  5. Step 5: Solve for x
    x = 645,966,439.74/30,106.71
  6. Step 6: Final answer
    x = 21,455.90

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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.