Home / 38,724.04-53,438.70-21,955.96

Finding the Fourth Proportional to 38,724.04, 53,438.70 and 21,955.96

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Solution

The fourth proportional to 38,724.04, 53,438.70 and 21,955.96 is: 30,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,724.04 : 53,438.70 = 21,955.96 : x
  2. Step 2: Convert to fraction form
    38,724.04/53,438.70 = 21,955.96/x
  3. Step 3: Cross multiply
    38,724.04x = 53,438.70 × 21,955.96
  4. Step 4: Simplify right side
    38,724.04x = 1,173,297,959.65
  5. Step 5: Solve for x
    x = 1,173,297,959.65/38,724.04
  6. Step 6: Final answer
    x = 30,298.96

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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.