Home / 28,374.03-39,155.81-15,626.96

Finding the Fourth Proportional to 28,374.03, 39,155.81 and 15,626.96

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Solution

The fourth proportional to 28,374.03, 39,155.81 and 15,626.96 is: 21,565.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.03 : 39,155.81 = 15,626.96 : x
  2. Step 2: Convert to fraction form
    28,374.03/39,155.81 = 15,626.96/x
  3. Step 3: Cross multiply
    28,374.03x = 39,155.81 × 15,626.96
  4. Step 4: Simplify right side
    28,374.03x = 611,886,149.56
  5. Step 5: Solve for x
    x = 611,886,149.56/28,374.03
  6. Step 6: Final answer
    x = 21,565.01

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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.