Home / 28,322.16-39,081.14-15,573.24

Finding the Fourth Proportional to 28,322.16, 39,081.14 and 15,573.24

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Solution

The fourth proportional to 28,322.16, 39,081.14 and 15,573.24 is: 21,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.16 : 39,081.14 = 15,573.24 : x
  2. Step 2: Convert to fraction form
    28,322.16/39,081.14 = 15,573.24/x
  3. Step 3: Cross multiply
    28,322.16x = 39,081.14 × 15,573.24
  4. Step 4: Simplify right side
    28,322.16x = 608,619,972.69
  5. Step 5: Solve for x
    x = 608,619,972.69/28,322.16
  6. Step 6: Final answer
    x = 21,489.18

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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.