Home / 22,315.86-33,421.02-19,378.20

Finding the Fourth Proportional to 22,315.86, 33,421.02 and 19,378.20

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Solution

The fourth proportional to 22,315.86, 33,421.02 and 19,378.20 is: 29,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,315.86 : 33,421.02 = 19,378.20 : x
  2. Step 2: Convert to fraction form
    22,315.86/33,421.02 = 19,378.20/x
  3. Step 3: Cross multiply
    22,315.86x = 33,421.02 × 19,378.20
  4. Step 4: Simplify right side
    22,315.86x = 647,639,209.76
  5. Step 5: Solve for x
    x = 647,639,209.76/22,315.86
  6. Step 6: Final answer
    x = 29,021.48

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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.