Home / 29,621.15-40,890.63-18,880.77

Finding the Fourth Proportional to 29,621.15, 40,890.63 and 18,880.77

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Solution

The fourth proportional to 29,621.15, 40,890.63 and 18,880.77 is: 26,064.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,621.15 : 40,890.63 = 18,880.77 : x
  2. Step 2: Convert to fraction form
    29,621.15/40,890.63 = 18,880.77/x
  3. Step 3: Cross multiply
    29,621.15x = 40,890.63 × 18,880.77
  4. Step 4: Simplify right side
    29,621.15x = 772,046,580.19
  5. Step 5: Solve for x
    x = 772,046,580.19/29,621.15
  6. Step 6: Final answer
    x = 26,064.03

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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.