Home / 26,628.70-39,915.51-9,976.99

Finding the Fourth Proportional to 26,628.70, 39,915.51 and 9,976.99

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Solution

The fourth proportional to 26,628.70, 39,915.51 and 9,976.99 is: 14,955.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,628.70 : 39,915.51 = 9,976.99 : x
  2. Step 2: Convert to fraction form
    26,628.70/39,915.51 = 9,976.99/x
  3. Step 3: Cross multiply
    26,628.70x = 39,915.51 × 9,976.99
  4. Step 4: Simplify right side
    26,628.70x = 398,236,644.11
  5. Step 5: Solve for x
    x = 398,236,644.11/26,628.70
  6. Step 6: Final answer
    x = 14,955.17

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1.5x scale

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.