Home / 40,370.90-55,727.34-30,328.47

Finding the Fourth Proportional to 40,370.90, 55,727.34 and 30,328.47

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Solution

The fourth proportional to 40,370.90, 55,727.34 and 30,328.47 is: 41,864.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,370.90 : 55,727.34 = 30,328.47 : x
  2. Step 2: Convert to fraction form
    40,370.90/55,727.34 = 30,328.47/x
  3. Step 3: Cross multiply
    40,370.90x = 55,727.34 × 30,328.47
  4. Step 4: Simplify right side
    40,370.90x = 1,690,124,959.37
  5. Step 5: Solve for x
    x = 1,690,124,959.37/40,370.90
  6. Step 6: Final answer
    x = 41,864.93

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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.