Home / 39,280.21-58,929.54-12,984.95

Finding the Fourth Proportional to 39,280.21, 58,929.54 and 12,984.95

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Solution

The fourth proportional to 39,280.21, 58,929.54 and 12,984.95 is: 19,480.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.21 : 58,929.54 = 12,984.95 : x
  2. Step 2: Convert to fraction form
    39,280.21/58,929.54 = 12,984.95/x
  3. Step 3: Cross multiply
    39,280.21x = 58,929.54 × 12,984.95
  4. Step 4: Simplify right side
    39,280.21x = 765,197,130.42
  5. Step 5: Solve for x
    x = 765,197,130.42/39,280.21
  6. Step 6: Final answer
    x = 19,480.47

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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.