Home / 39,521.01-54,538.29-21,615.62

Finding the Fourth Proportional to 39,521.01, 54,538.29 and 21,615.62

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Solution

The fourth proportional to 39,521.01, 54,538.29 and 21,615.62 is: 29,829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,521.01 : 54,538.29 = 21,615.62 : x
  2. Step 2: Convert to fraction form
    39,521.01/54,538.29 = 21,615.62/x
  3. Step 3: Cross multiply
    39,521.01x = 54,538.29 × 21,615.62
  4. Step 4: Simplify right side
    39,521.01x = 1,178,878,952.09
  5. Step 5: Solve for x
    x = 1,178,878,952.09/39,521.01
  6. Step 6: Final answer
    x = 29,829.17

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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.