Home / 28,515.93-42,711.60-14,451.81

Finding the Fourth Proportional to 28,515.93, 42,711.60 and 14,451.81

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Solution

The fourth proportional to 28,515.93, 42,711.60 and 14,451.81 is: 21,646.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.93 : 42,711.60 = 14,451.81 : x
  2. Step 2: Convert to fraction form
    28,515.93/42,711.60 = 14,451.81/x
  3. Step 3: Cross multiply
    28,515.93x = 42,711.60 × 14,451.81
  4. Step 4: Simplify right side
    28,515.93x = 617,259,928.00
  5. Step 5: Solve for x
    x = 617,259,928.00/28,515.93
  6. Step 6: Final answer
    x = 21,646.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.