Home / 15,780.23-23,672.81-4,688.02

Finding the Fourth Proportional to 15,780.23, 23,672.81 and 4,688.02

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Solution

The fourth proportional to 15,780.23, 23,672.81 and 4,688.02 is: 7,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.23 : 23,672.81 = 4,688.02 : x
  2. Step 2: Convert to fraction form
    15,780.23/23,672.81 = 4,688.02/x
  3. Step 3: Cross multiply
    15,780.23x = 23,672.81 × 4,688.02
  4. Step 4: Simplify right side
    15,780.23x = 110,978,606.74
  5. Step 5: Solve for x
    x = 110,978,606.74/15,780.23
  6. Step 6: Final answer
    x = 7,032.76

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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.