Home / 40,155.93-55,364.80-25,790.40

Finding the Fourth Proportional to 40,155.93, 55,364.80 and 25,790.40

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Solution

The fourth proportional to 40,155.93, 55,364.80 and 25,790.40 is: 35,558.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,155.93 : 55,364.80 = 25,790.40 : x
  2. Step 2: Convert to fraction form
    40,155.93/55,364.80 = 25,790.40/x
  3. Step 3: Cross multiply
    40,155.93x = 55,364.80 × 25,790.40
  4. Step 4: Simplify right side
    40,155.93x = 1,427,880,337.92
  5. Step 5: Solve for x
    x = 1,427,880,337.92/40,155.93
  6. Step 6: Final answer
    x = 35,558.39

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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.