Home / 26,787.04-40,114.95-18,870.10

Finding the Fourth Proportional to 26,787.04, 40,114.95 and 18,870.10

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Solution

The fourth proportional to 26,787.04, 40,114.95 and 18,870.10 is: 28,258.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,787.04 : 40,114.95 = 18,870.10 : x
  2. Step 2: Convert to fraction form
    26,787.04/40,114.95 = 18,870.10/x
  3. Step 3: Cross multiply
    26,787.04x = 40,114.95 × 18,870.10
  4. Step 4: Simplify right side
    26,787.04x = 756,972,946.94
  5. Step 5: Solve for x
    x = 756,972,946.94/26,787.04
  6. Step 6: Final answer
    x = 28,258.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.