Home / 39,780.60-59,673.54-13,476.36

Finding the Fourth Proportional to 39,780.60, 59,673.54 and 13,476.36

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Solution

The fourth proportional to 39,780.60, 59,673.54 and 13,476.36 is: 20,215.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780.60 : 59,673.54 = 13,476.36 : x
  2. Step 2: Convert to fraction form
    39,780.60/59,673.54 = 13,476.36/x
  3. Step 3: Cross multiply
    39,780.60x = 59,673.54 × 13,476.36
  4. Step 4: Simplify right side
    39,780.60x = 804,182,107.51
  5. Step 5: Solve for x
    x = 804,182,107.51/39,780.60
  6. Step 6: Final answer
    x = 20,215.43

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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.