Home / 28,473.48-39,289.74-15,898.76

Finding the Fourth Proportional to 28,473.48, 39,289.74 and 15,898.76

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Solution

The fourth proportional to 28,473.48, 39,289.74 and 15,898.76 is: 21,938.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473.48 : 39,289.74 = 15,898.76 : x
  2. Step 2: Convert to fraction form
    28,473.48/39,289.74 = 15,898.76/x
  3. Step 3: Cross multiply
    28,473.48x = 39,289.74 × 15,898.76
  4. Step 4: Simplify right side
    28,473.48x = 624,658,146.72
  5. Step 5: Solve for x
    x = 624,658,146.72/28,473.48
  6. Step 6: Final answer
    x = 21,938.24

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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.