Home / 40,438.99-55,829.09-30,803.23

Finding the Fourth Proportional to 40,438.99, 55,829.09 and 30,803.23

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Solution

The fourth proportional to 40,438.99, 55,829.09 and 30,803.23 is: 42,526.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,438.99 : 55,829.09 = 30,803.23 : x
  2. Step 2: Convert to fraction form
    40,438.99/55,829.09 = 30,803.23/x
  3. Step 3: Cross multiply
    40,438.99x = 55,829.09 × 30,803.23
  4. Step 4: Simplify right side
    40,438.99x = 1,719,715,866.80
  5. Step 5: Solve for x
    x = 1,719,715,866.80/40,438.99
  6. Step 6: Final answer
    x = 42,526.19

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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.