Home / 28,597.12-39,459.36-17,979.28

Finding the Fourth Proportional to 28,597.12, 39,459.36 and 17,979.28

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Solution

The fourth proportional to 28,597.12, 39,459.36 and 17,979.28 is: 24,808.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597.12 : 39,459.36 = 17,979.28 : x
  2. Step 2: Convert to fraction form
    28,597.12/39,459.36 = 17,979.28/x
  3. Step 3: Cross multiply
    28,597.12x = 39,459.36 × 17,979.28
  4. Step 4: Simplify right side
    28,597.12x = 709,450,882.06
  5. Step 5: Solve for x
    x = 709,450,882.06/28,597.12
  6. Step 6: Final answer
    x = 24,808.47

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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.