Home / 39,158.63-54,038.97-22,391.63

Finding the Fourth Proportional to 39,158.63, 54,038.97 and 22,391.63

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Solution

The fourth proportional to 39,158.63, 54,038.97 and 22,391.63 is: 30,900.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,158.63 : 54,038.97 = 22,391.63 : x
  2. Step 2: Convert to fraction form
    39,158.63/54,038.97 = 22,391.63/x
  3. Step 3: Cross multiply
    39,158.63x = 54,038.97 × 22,391.63
  4. Step 4: Simplify right side
    39,158.63x = 1,210,020,351.63
  5. Step 5: Solve for x
    x = 1,210,020,351.63/39,158.63
  6. Step 6: Final answer
    x = 30,900.48

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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.