Home / 51,383.94-70,900.76-28,715.68

Finding the Fourth Proportional to 51,383.94, 70,900.76 and 28,715.68

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Solution

The fourth proportional to 51,383.94, 70,900.76 and 28,715.68 is: 39,622.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,383.94 : 70,900.76 = 28,715.68 : x
  2. Step 2: Convert to fraction form
    51,383.94/70,900.76 = 28,715.68/x
  3. Step 3: Cross multiply
    51,383.94x = 70,900.76 × 28,715.68
  4. Step 4: Simplify right side
    51,383.94x = 2,035,963,569.59
  5. Step 5: Solve for x
    x = 2,035,963,569.59/51,383.94
  6. Step 6: Final answer
    x = 39,622.57

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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.