Home / 28,273.85-39,018.65-15,527.85

Finding the Fourth Proportional to 28,273.85, 39,018.65 and 15,527.85

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Solution

The fourth proportional to 28,273.85, 39,018.65 and 15,527.85 is: 21,428.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.85 : 39,018.65 = 15,527.85 : x
  2. Step 2: Convert to fraction form
    28,273.85/39,018.65 = 15,527.85/x
  3. Step 3: Cross multiply
    28,273.85x = 39,018.65 × 15,527.85
  4. Step 4: Simplify right side
    28,273.85x = 605,875,666.76
  5. Step 5: Solve for x
    x = 605,875,666.76/28,273.85
  6. Step 6: Final answer
    x = 21,428.84

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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.