Home / 40,400.68-60,615.60-20,688.52

Finding the Fourth Proportional to 40,400.68, 60,615.60 and 20,688.52

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Solution

The fourth proportional to 40,400.68, 60,615.60 and 20,688.52 is: 31,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,400.68 : 60,615.60 = 20,688.52 : x
  2. Step 2: Convert to fraction form
    40,400.68/60,615.60 = 20,688.52/x
  3. Step 3: Cross multiply
    40,400.68x = 60,615.60 × 20,688.52
  4. Step 4: Simplify right side
    40,400.68x = 1,254,047,052.91
  5. Step 5: Solve for x
    x = 1,254,047,052.91/40,400.68
  6. Step 6: Final answer
    x = 31,040.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.