Home / 38,669.84-53,364.48-21,902.84

Finding the Fourth Proportional to 38,669.84, 53,364.48 and 21,902.84

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Solution

The fourth proportional to 38,669.84, 53,364.48 and 21,902.84 is: 30,225.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,669.84 : 53,364.48 = 21,902.84 : x
  2. Step 2: Convert to fraction form
    38,669.84/53,364.48 = 21,902.84/x
  3. Step 3: Cross multiply
    38,669.84x = 53,364.48 × 21,902.84
  4. Step 4: Simplify right side
    38,669.84x = 1,168,833,667.12
  5. Step 5: Solve for x
    x = 1,168,833,667.12/38,669.84
  6. Step 6: Final answer
    x = 30,225.98

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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.