Home / 27,741.69-38,281.91-15,803.37

Finding the Fourth Proportional to 27,741.69, 38,281.91 and 15,803.37

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Solution

The fourth proportional to 27,741.69, 38,281.91 and 15,803.37 is: 21,807.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,741.69 : 38,281.91 = 15,803.37 : x
  2. Step 2: Convert to fraction form
    27,741.69/38,281.91 = 15,803.37/x
  3. Step 3: Cross multiply
    27,741.69x = 38,281.91 × 15,803.37
  4. Step 4: Simplify right side
    27,741.69x = 604,983,109.02
  5. Step 5: Solve for x
    x = 604,983,109.02/27,741.69
  6. Step 6: Final answer
    x = 21,807.72

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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.