Home / 39,278.84-58,927.48-12,983.58

Finding the Fourth Proportional to 39,278.84, 58,927.48 and 12,983.58

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Solution

The fourth proportional to 39,278.84, 58,927.48 and 12,983.58 is: 19,478.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.84 : 58,927.48 = 12,983.58 : x
  2. Step 2: Convert to fraction form
    39,278.84/58,927.48 = 12,983.58/x
  3. Step 3: Cross multiply
    39,278.84x = 58,927.48 × 12,983.58
  4. Step 4: Simplify right side
    39,278.84x = 765,089,618.32
  5. Step 5: Solve for x
    x = 765,089,618.32/39,278.84
  6. Step 6: Final answer
    x = 19,478.42

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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.