Home / 28,074.83-38,711.79-19,127.57

Finding the Fourth Proportional to 28,074.83, 38,711.79 and 19,127.57

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Solution

The fourth proportional to 28,074.83, 38,711.79 and 19,127.57 is: 26,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074.83 : 38,711.79 = 19,127.57 : x
  2. Step 2: Convert to fraction form
    28,074.83/38,711.79 = 19,127.57/x
  3. Step 3: Cross multiply
    28,074.83x = 38,711.79 × 19,127.57
  4. Step 4: Simplify right side
    28,074.83x = 740,462,279.49
  5. Step 5: Solve for x
    x = 740,462,279.49/28,074.83
  6. Step 6: Final answer
    x = 26,374.60

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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.