Home / 51,210.96-76,851-17,931.24

Finding the Fourth Proportional to 51,210.96, 76,851 and 17,931.24

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Solution

The fourth proportional to 51,210.96, 76,851 and 17,931.24 is: 26,908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,210.96 : 76,851 = 17,931.24 : x
  2. Step 2: Convert to fraction form
    51,210.96/76,851 = 17,931.24/x
  3. Step 3: Cross multiply
    51,210.96x = 76,851 × 17,931.24
  4. Step 4: Simplify right side
    51,210.96x = 1,378,033,725.24
  5. Step 5: Solve for x
    x = 1,378,033,725.24/51,210.96
  6. Step 6: Final answer
    x = 26,908.96

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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.