Home / 28,464.48-39,277.36-15,889.76

Finding the Fourth Proportional to 28,464.48, 39,277.36 and 15,889.76

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Solution

The fourth proportional to 28,464.48, 39,277.36 and 15,889.76 is: 21,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.48 : 39,277.36 = 15,889.76 : x
  2. Step 2: Convert to fraction form
    28,464.48/39,277.36 = 15,889.76/x
  3. Step 3: Cross multiply
    28,464.48x = 39,277.36 × 15,889.76
  4. Step 4: Simplify right side
    28,464.48x = 624,107,823.83
  5. Step 5: Solve for x
    x = 624,107,823.83/28,464.48
  6. Step 6: Final answer
    x = 21,925.85

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1.5x scale

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.