Home / 27,975.31-38,605.93-15,400.06

Finding the Fourth Proportional to 27,975.31, 38,605.93 and 15,400.06

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Solution

The fourth proportional to 27,975.31, 38,605.93 and 15,400.06 is: 21,252.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,975.31 : 38,605.93 = 15,400.06 : x
  2. Step 2: Convert to fraction form
    27,975.31/38,605.93 = 15,400.06/x
  3. Step 3: Cross multiply
    27,975.31x = 38,605.93 × 15,400.06
  4. Step 4: Simplify right side
    27,975.31x = 594,533,503.34
  5. Step 5: Solve for x
    x = 594,533,503.34/27,975.31
  6. Step 6: Final answer
    x = 21,252.08

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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.