Home / 28,017.06-38,663.55-15,441.81

Finding the Fourth Proportional to 28,017.06, 38,663.55 and 15,441.81

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Solution

The fourth proportional to 28,017.06, 38,663.55 and 15,441.81 is: 21,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.06 : 38,663.55 = 15,441.81 : x
  2. Step 2: Convert to fraction form
    28,017.06/38,663.55 = 15,441.81/x
  3. Step 3: Cross multiply
    28,017.06x = 38,663.55 × 15,441.81
  4. Step 4: Simplify right side
    28,017.06x = 597,035,193.03
  5. Step 5: Solve for x
    x = 597,035,193.03/28,017.06
  6. Step 6: Final answer
    x = 21,309.70

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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.