Home / 30,140.87-45,204.81-19,032.72

Finding the Fourth Proportional to 30,140.87, 45,204.81 and 19,032.72

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Solution

The fourth proportional to 30,140.87, 45,204.81 and 19,032.72 is: 28,544.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.87 : 45,204.81 = 19,032.72 : x
  2. Step 2: Convert to fraction form
    30,140.87/45,204.81 = 19,032.72/x
  3. Step 3: Cross multiply
    30,140.87x = 45,204.81 × 19,032.72
  4. Step 4: Simplify right side
    30,140.87x = 860,370,491.38
  5. Step 5: Solve for x
    x = 860,370,491.38/30,140.87
  6. Step 6: Final answer
    x = 28,544.98

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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.