Home / 39,326.55-54,271.63-21,422.51

Finding the Fourth Proportional to 39,326.55, 54,271.63 and 21,422.51

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Solution

The fourth proportional to 39,326.55, 54,271.63 and 21,422.51 is: 29,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,326.55 : 54,271.63 = 21,422.51 : x
  2. Step 2: Convert to fraction form
    39,326.55/54,271.63 = 21,422.51/x
  3. Step 3: Cross multiply
    39,326.55x = 54,271.63 × 21,422.51
  4. Step 4: Simplify right side
    39,326.55x = 1,162,634,536.39
  5. Step 5: Solve for x
    x = 1,162,634,536.39/39,326.55
  6. Step 6: Final answer
    x = 29,563.60

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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.