Home / 27,089.78-37,386.71-15,605.08

Finding the Fourth Proportional to 27,089.78, 37,386.71 and 15,605.08

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Solution

The fourth proportional to 27,089.78, 37,386.71 and 15,605.08 is: 21,536.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,089.78 : 37,386.71 = 15,605.08 : x
  2. Step 2: Convert to fraction form
    27,089.78/37,386.71 = 15,605.08/x
  3. Step 3: Cross multiply
    27,089.78x = 37,386.71 × 15,605.08
  4. Step 4: Simplify right side
    27,089.78x = 583,422,721.18
  5. Step 5: Solve for x
    x = 583,422,721.18/27,089.78
  6. Step 6: Final answer
    x = 21,536.64

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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.