Home / 28,084.77-38,756.96-15,509.49

Finding the Fourth Proportional to 28,084.77, 38,756.96 and 15,509.49

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Solution

The fourth proportional to 28,084.77, 38,756.96 and 15,509.49 is: 21,403.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.77 : 38,756.96 = 15,509.49 : x
  2. Step 2: Convert to fraction form
    28,084.77/38,756.96 = 15,509.49/x
  3. Step 3: Cross multiply
    28,084.77x = 38,756.96 × 15,509.49
  4. Step 4: Simplify right side
    28,084.77x = 601,100,606.00
  5. Step 5: Solve for x
    x = 601,100,606.00/28,084.77
  6. Step 6: Final answer
    x = 21,403.08

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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.