Home / 38,543.08-53,190.66-21,777.16

Finding the Fourth Proportional to 38,543.08, 53,190.66 and 21,777.16

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Solution

The fourth proportional to 38,543.08, 53,190.66 and 21,777.16 is: 30,053.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,543.08 : 53,190.66 = 21,777.16 : x
  2. Step 2: Convert to fraction form
    38,543.08/53,190.66 = 21,777.16/x
  3. Step 3: Cross multiply
    38,543.08x = 53,190.66 × 21,777.16
  4. Step 4: Simplify right side
    38,543.08x = 1,158,341,513.33
  5. Step 5: Solve for x
    x = 1,158,341,513.33/38,543.08
  6. Step 6: Final answer
    x = 30,053.16

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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.