Home / 28,532.66-39,374.34-15,786.32

Finding the Fourth Proportional to 28,532.66, 39,374.34 and 15,786.32

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Solution

The fourth proportional to 28,532.66, 39,374.34 and 15,786.32 is: 21,784.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.66 : 39,374.34 = 15,786.32 : x
  2. Step 2: Convert to fraction form
    28,532.66/39,374.34 = 15,786.32/x
  3. Step 3: Cross multiply
    28,532.66x = 39,374.34 × 15,786.32
  4. Step 4: Simplify right side
    28,532.66x = 621,575,931.03
  5. Step 5: Solve for x
    x = 621,575,931.03/28,532.66
  6. Step 6: Final answer
    x = 21,784.72

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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.