Home / 40,015.76-55,062.38-38,798.33

Finding the Fourth Proportional to 40,015.76, 55,062.38 and 38,798.33

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Solution

The fourth proportional to 40,015.76, 55,062.38 and 38,798.33 is: 53,387.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,015.76 : 55,062.38 = 38,798.33 : x
  2. Step 2: Convert to fraction form
    40,015.76/55,062.38 = 38,798.33/x
  3. Step 3: Cross multiply
    40,015.76x = 55,062.38 × 38,798.33
  4. Step 4: Simplify right side
    40,015.76x = 2,136,328,211.51
  5. Step 5: Solve for x
    x = 2,136,328,211.51/40,015.76
  6. Step 6: Final answer
    x = 53,387.18

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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.