Home / 32,880.80-45,356.64-18,731

Finding the Fourth Proportional to 32,880.80, 45,356.64 and 18,731

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Solution

The fourth proportional to 32,880.80, 45,356.64 and 18,731 is: 25,838.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,880.80 : 45,356.64 = 18,731 : x
  2. Step 2: Convert to fraction form
    32,880.80/45,356.64 = 18,731/x
  3. Step 3: Cross multiply
    32,880.80x = 45,356.64 × 18,731
  4. Step 4: Simplify right side
    32,880.80x = 849,575,223.84
  5. Step 5: Solve for x
    x = 849,575,223.84/32,880.80
  6. Step 6: Final answer
    x = 25,838.03

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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.