Home / 42,210.07-63,317.22-12,628.15

Finding the Fourth Proportional to 42,210.07, 63,317.22 and 12,628.15

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Solution

The fourth proportional to 42,210.07, 63,317.22 and 12,628.15 is: 18,942.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,210.07 : 63,317.22 = 12,628.15 : x
  2. Step 2: Convert to fraction form
    42,210.07/63,317.22 = 12,628.15/x
  3. Step 3: Cross multiply
    42,210.07x = 63,317.22 × 12,628.15
  4. Step 4: Simplify right side
    42,210.07x = 799,579,351.74
  5. Step 5: Solve for x
    x = 799,579,351.74/42,210.07
  6. Step 6: Final answer
    x = 18,942.86

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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.