Home / 48,387.13-66,782.37-28,246.21

Finding the Fourth Proportional to 48,387.13, 66,782.37 and 28,246.21

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Solution

The fourth proportional to 48,387.13, 66,782.37 and 28,246.21 is: 38,984.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,387.13 : 66,782.37 = 28,246.21 : x
  2. Step 2: Convert to fraction form
    48,387.13/66,782.37 = 28,246.21/x
  3. Step 3: Cross multiply
    48,387.13x = 66,782.37 × 28,246.21
  4. Step 4: Simplify right side
    48,387.13x = 1,886,348,847.32
  5. Step 5: Solve for x
    x = 1,886,348,847.32/48,387.13
  6. Step 6: Final answer
    x = 38,984.52

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Double scale
Find fourth proportional to 48,388.13, 66,783.75 and 28,247.21
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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.