Home / 38,739.93-53,478.81-29,784.30

Finding the Fourth Proportional to 38,739.93, 53,478.81 and 29,784.30

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Solution

The fourth proportional to 38,739.93, 53,478.81 and 29,784.30 is: 41,115.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,739.93 : 53,478.81 = 29,784.30 : x
  2. Step 2: Convert to fraction form
    38,739.93/53,478.81 = 29,784.30/x
  3. Step 3: Cross multiply
    38,739.93x = 53,478.81 × 29,784.30
  4. Step 4: Simplify right side
    38,739.93x = 1,592,828,920.68
  5. Step 5: Solve for x
    x = 1,592,828,920.68/38,739.93
  6. Step 6: Final answer
    x = 41,115.95

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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.