Home / 39,228.48-58,830.24-12,928.32

Finding the Fourth Proportional to 39,228.48, 58,830.24 and 12,928.32

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Solution

The fourth proportional to 39,228.48, 58,830.24 and 12,928.32 is: 19,388.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228.48 : 58,830.24 = 12,928.32 : x
  2. Step 2: Convert to fraction form
    39,228.48/58,830.24 = 12,928.32/x
  3. Step 3: Cross multiply
    39,228.48x = 58,830.24 × 12,928.32
  4. Step 4: Simplify right side
    39,228.48x = 760,576,168.40
  5. Step 5: Solve for x
    x = 760,576,168.40/39,228.48
  6. Step 6: Final answer
    x = 19,388.37

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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.