Home / 19,941.71-27,518.55-10,987.76

Finding the Fourth Proportional to 19,941.71, 27,518.55 and 10,987.76

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Solution

The fourth proportional to 19,941.71, 27,518.55 and 10,987.76 is: 15,162.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.71 : 27,518.55 = 10,987.76 : x
  2. Step 2: Convert to fraction form
    19,941.71/27,518.55 = 10,987.76/x
  3. Step 3: Cross multiply
    19,941.71x = 27,518.55 × 10,987.76
  4. Step 4: Simplify right side
    19,941.71x = 302,367,085.36
  5. Step 5: Solve for x
    x = 302,367,085.36/19,941.71
  6. Step 6: Final answer
    x = 15,162.55

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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.