Home / 38,970.03-53,778.62-21,065.04

Finding the Fourth Proportional to 38,970.03, 53,778.62 and 21,065.04

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Solution

The fourth proportional to 38,970.03, 53,778.62 and 21,065.04 is: 29,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,970.03 : 53,778.62 = 21,065.04 : x
  2. Step 2: Convert to fraction form
    38,970.03/53,778.62 = 21,065.04/x
  3. Step 3: Cross multiply
    38,970.03x = 53,778.62 × 21,065.04
  4. Step 4: Simplify right side
    38,970.03x = 1,132,848,853.86
  5. Step 5: Solve for x
    x = 1,132,848,853.86/38,970.03
  6. Step 6: Final answer
    x = 29,069.74

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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.