Home / 38,280.58-57,420.36-13,320.16

Finding the Fourth Proportional to 38,280.58, 57,420.36 and 13,320.16

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Solution

The fourth proportional to 38,280.58, 57,420.36 and 13,320.16 is: 19,980.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,280.58 : 57,420.36 = 13,320.16 : x
  2. Step 2: Convert to fraction form
    38,280.58/57,420.36 = 13,320.16/x
  3. Step 3: Cross multiply
    38,280.58x = 57,420.36 × 13,320.16
  4. Step 4: Simplify right side
    38,280.58x = 764,848,382.46
  5. Step 5: Solve for x
    x = 764,848,382.46/38,280.58
  6. Step 6: Final answer
    x = 19,980.06

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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.