Home / 39,623.40-59,398.08-19,878.84

Finding the Fourth Proportional to 39,623.40, 59,398.08 and 19,878.84

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Solution

The fourth proportional to 39,623.40, 59,398.08 and 19,878.84 is: 29,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,623.40 : 59,398.08 = 19,878.84 : x
  2. Step 2: Convert to fraction form
    39,623.40/59,398.08 = 19,878.84/x
  3. Step 3: Cross multiply
    39,623.40x = 59,398.08 × 19,878.84
  4. Step 4: Simplify right side
    39,623.40x = 1,180,764,928.63
  5. Step 5: Solve for x
    x = 1,180,764,928.63/39,623.40
  6. Step 6: Final answer
    x = 29,799.69

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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.