Home / 39,161.39-54,041.33-21,256.00

Finding the Fourth Proportional to 39,161.39, 54,041.33 and 21,256.00

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Solution

The fourth proportional to 39,161.39, 54,041.33 and 21,256.00 is: 29,332.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,161.39 : 54,041.33 = 21,256.00 : x
  2. Step 2: Convert to fraction form
    39,161.39/54,041.33 = 21,256.00/x
  3. Step 3: Cross multiply
    39,161.39x = 54,041.33 × 21,256.00
  4. Step 4: Simplify right side
    39,161.39x = 1,148,702,428.52
  5. Step 5: Solve for x
    x = 1,148,702,428.52/39,161.39
  6. Step 6: Final answer
    x = 29,332.53

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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.