Home / 30,371.76-45,574.65-12,854.70

Finding the Fourth Proportional to 30,371.76, 45,574.65 and 12,854.70

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Solution

The fourth proportional to 30,371.76, 45,574.65 and 12,854.70 is: 19,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,371.76 : 45,574.65 = 12,854.70 : x
  2. Step 2: Convert to fraction form
    30,371.76/45,574.65 = 12,854.70/x
  3. Step 3: Cross multiply
    30,371.76x = 45,574.65 × 12,854.70
  4. Step 4: Simplify right side
    30,371.76x = 585,848,453.36
  5. Step 5: Solve for x
    x = 585,848,453.36/30,371.76
  6. Step 6: Final answer
    x = 19,289.25

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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.