Home / 39,461.33-54,457.80-21,556.63

Finding the Fourth Proportional to 39,461.33, 54,457.80 and 21,556.63

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Solution

The fourth proportional to 39,461.33, 54,457.80 and 21,556.63 is: 29,748.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.33 : 54,457.80 = 21,556.63 : x
  2. Step 2: Convert to fraction form
    39,461.33/54,457.80 = 21,556.63/x
  3. Step 3: Cross multiply
    39,461.33x = 54,457.80 × 21,556.63
  4. Step 4: Simplify right side
    39,461.33x = 1,173,926,509.07
  5. Step 5: Solve for x
    x = 1,173,926,509.07/39,461.33
  6. Step 6: Final answer
    x = 29,748.79

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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.