Home / 28,520.01-39,357.32-15,773.74

Finding the Fourth Proportional to 28,520.01, 39,357.32 and 15,773.74

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Solution

The fourth proportional to 28,520.01, 39,357.32 and 15,773.74 is: 21,767.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.01 : 39,357.32 = 15,773.74 : x
  2. Step 2: Convert to fraction form
    28,520.01/39,357.32 = 15,773.74/x
  3. Step 3: Cross multiply
    28,520.01x = 39,357.32 × 15,773.74
  4. Step 4: Simplify right side
    28,520.01x = 620,811,955.51
  5. Step 5: Solve for x
    x = 620,811,955.51/28,520.01
  6. Step 6: Final answer
    x = 21,767.59

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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.