Home / 40,989.48-56,527.62-30,405.48

Finding the Fourth Proportional to 40,989.48, 56,527.62 and 30,405.48

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Solution

The fourth proportional to 40,989.48, 56,527.62 and 30,405.48 is: 41,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,989.48 : 56,527.62 = 30,405.48 : x
  2. Step 2: Convert to fraction form
    40,989.48/56,527.62 = 30,405.48/x
  3. Step 3: Cross multiply
    40,989.48x = 56,527.62 × 30,405.48
  4. Step 4: Simplify right side
    40,989.48x = 1,718,749,419.36
  5. Step 5: Solve for x
    x = 1,718,749,419.36/40,989.48
  6. Step 6: Final answer
    x = 41,931.48

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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.