Home / 39,920.28-55,113.26-26,509.92

Finding the Fourth Proportional to 39,920.28, 55,113.26 and 26,509.92

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Solution

The fourth proportional to 39,920.28, 55,113.26 and 26,509.92 is: 36,599.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,920.28 : 55,113.26 = 26,509.92 : x
  2. Step 2: Convert to fraction form
    39,920.28/55,113.26 = 26,509.92/x
  3. Step 3: Cross multiply
    39,920.28x = 55,113.26 × 26,509.92
  4. Step 4: Simplify right side
    39,920.28x = 1,461,047,923.43
  5. Step 5: Solve for x
    x = 1,461,047,923.43/39,920.28
  6. Step 6: Final answer
    x = 36,599.14

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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.