Home / 28,988.36-43,497.13-21,607.64

Finding the Fourth Proportional to 28,988.36, 43,497.13 and 21,607.64

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Solution

The fourth proportional to 28,988.36, 43,497.13 and 21,607.64 is: 32,422.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.36 : 43,497.13 = 21,607.64 : x
  2. Step 2: Convert to fraction form
    28,988.36/43,497.13 = 21,607.64/x
  3. Step 3: Cross multiply
    28,988.36x = 43,497.13 × 21,607.64
  4. Step 4: Simplify right side
    28,988.36x = 939,870,326.07
  5. Step 5: Solve for x
    x = 939,870,326.07/28,988.36
  6. Step 6: Final answer
    x = 32,422.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.