Home / 27,305.10-37,680.55-15,368.15

Finding the Fourth Proportional to 27,305.10, 37,680.55 and 15,368.15

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Solution

The fourth proportional to 27,305.10, 37,680.55 and 15,368.15 is: 21,207.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,305.10 : 37,680.55 = 15,368.15 : x
  2. Step 2: Convert to fraction form
    27,305.10/37,680.55 = 15,368.15/x
  3. Step 3: Cross multiply
    27,305.10x = 37,680.55 × 15,368.15
  4. Step 4: Simplify right side
    27,305.10x = 579,080,400.26
  5. Step 5: Solve for x
    x = 579,080,400.26/27,305.10
  6. Step 6: Final answer
    x = 21,207.77

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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.