Home / 38,394.51-52,988.75-21,400.30

Finding the Fourth Proportional to 38,394.51, 52,988.75 and 21,400.30

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Solution

The fourth proportional to 38,394.51, 52,988.75 and 21,400.30 is: 29,534.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,394.51 : 52,988.75 = 21,400.30 : x
  2. Step 2: Convert to fraction form
    38,394.51/52,988.75 = 21,400.30/x
  3. Step 3: Cross multiply
    38,394.51x = 52,988.75 × 21,400.30
  4. Step 4: Simplify right side
    38,394.51x = 1,133,975,186.11
  5. Step 5: Solve for x
    x = 1,133,975,186.11/38,394.51
  6. Step 6: Final answer
    x = 29,534.83

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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.