Home / 45,331.40-68,021.40-19,038.80

Finding the Fourth Proportional to 45,331.40, 68,021.40 and 19,038.80

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Solution

The fourth proportional to 45,331.40, 68,021.40 and 19,038.80 is: 28,568.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,331.40 : 68,021.40 = 19,038.80 : x
  2. Step 2: Convert to fraction form
    45,331.40/68,021.40 = 19,038.80/x
  3. Step 3: Cross multiply
    45,331.40x = 68,021.40 × 19,038.80
  4. Step 4: Simplify right side
    45,331.40x = 1,295,045,830.32
  5. Step 5: Solve for x
    x = 1,295,045,830.32/45,331.40
  6. Step 6: Final answer
    x = 28,568.41

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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.