Home / 43,868.39-65,795.15-15,782.72

Finding the Fourth Proportional to 43,868.39, 65,795.15 and 15,782.72

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Solution

The fourth proportional to 43,868.39, 65,795.15 and 15,782.72 is: 23,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,868.39 : 65,795.15 = 15,782.72 : x
  2. Step 2: Convert to fraction form
    43,868.39/65,795.15 = 15,782.72/x
  3. Step 3: Cross multiply
    43,868.39x = 65,795.15 × 15,782.72
  4. Step 4: Simplify right side
    43,868.39x = 1,038,426,140.29
  5. Step 5: Solve for x
    x = 1,038,426,140.29/43,868.39
  6. Step 6: Final answer
    x = 23,671.40

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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.