Home / 27,386.63-37,784.72-21,625.80

Finding the Fourth Proportional to 27,386.63, 37,784.72 and 21,625.80

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Solution

The fourth proportional to 27,386.63, 37,784.72 and 21,625.80 is: 29,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,386.63 : 37,784.72 = 21,625.80 : x
  2. Step 2: Convert to fraction form
    27,386.63/37,784.72 = 21,625.80/x
  3. Step 3: Cross multiply
    27,386.63x = 37,784.72 × 21,625.80
  4. Step 4: Simplify right side
    27,386.63x = 817,124,689.65
  5. Step 5: Solve for x
    x = 817,124,689.65/27,386.63
  6. Step 6: Final answer
    x = 29,836.63

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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.