Home / 39,780.74-54,888.08-23,870.31

Finding the Fourth Proportional to 39,780.74, 54,888.08 and 23,870.31

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Solution

The fourth proportional to 39,780.74, 54,888.08 and 23,870.31 is: 32,935.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780.74 : 54,888.08 = 23,870.31 : x
  2. Step 2: Convert to fraction form
    39,780.74/54,888.08 = 23,870.31/x
  3. Step 3: Cross multiply
    39,780.74x = 54,888.08 × 23,870.31
  4. Step 4: Simplify right side
    39,780.74x = 1,310,195,365.55
  5. Step 5: Solve for x
    x = 1,310,195,365.55/39,780.74
  6. Step 6: Final answer
    x = 32,935.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.