Home / 39,956.78-59,900.60-15,315.50

Finding the Fourth Proportional to 39,956.78, 59,900.60 and 15,315.50

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Solution

The fourth proportional to 39,956.78, 59,900.60 and 15,315.50 is: 22,960.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,956.78 : 59,900.60 = 15,315.50 : x
  2. Step 2: Convert to fraction form
    39,956.78/59,900.60 = 15,315.50/x
  3. Step 3: Cross multiply
    39,956.78x = 59,900.60 × 15,315.50
  4. Step 4: Simplify right side
    39,956.78x = 917,407,639.30
  5. Step 5: Solve for x
    x = 917,407,639.30/39,956.78
  6. Step 6: Final answer
    x = 22,960.00

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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.