Home / 39,315.65-54,256.64-22,320.63

Finding the Fourth Proportional to 39,315.65, 54,256.64 and 22,320.63

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Solution

The fourth proportional to 39,315.65, 54,256.64 and 22,320.63 is: 30,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,315.65 : 54,256.64 = 22,320.63 : x
  2. Step 2: Convert to fraction form
    39,315.65/54,256.64 = 22,320.63/x
  3. Step 3: Cross multiply
    39,315.65x = 54,256.64 × 22,320.63
  4. Step 4: Simplify right side
    39,315.65x = 1,211,042,274.88
  5. Step 5: Solve for x
    x = 1,211,042,274.88/39,315.65
  6. Step 6: Final answer
    x = 30,803.06

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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.