Home / 28,322.54-39,085.74-15,574.92

Finding the Fourth Proportional to 28,322.54, 39,085.74 and 15,574.92

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Solution

The fourth proportional to 28,322.54, 39,085.74 and 15,574.92 is: 21,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.54 : 39,085.74 = 15,574.92 : x
  2. Step 2: Convert to fraction form
    28,322.54/39,085.74 = 15,574.92/x
  3. Step 3: Cross multiply
    28,322.54x = 39,085.74 × 15,574.92
  4. Step 4: Simplify right side
    28,322.54x = 608,757,273.64
  5. Step 5: Solve for x
    x = 608,757,273.64/28,322.54
  6. Step 6: Final answer
    x = 21,493.74

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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.