Home / 28,591.68-42,899.81-13,811.69

Finding the Fourth Proportional to 28,591.68, 42,899.81 and 13,811.69

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Solution

The fourth proportional to 28,591.68, 42,899.81 and 13,811.69 is: 20,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.68 : 42,899.81 = 13,811.69 : x
  2. Step 2: Convert to fraction form
    28,591.68/42,899.81 = 13,811.69/x
  3. Step 3: Cross multiply
    28,591.68x = 42,899.81 × 13,811.69
  4. Step 4: Simplify right side
    28,591.68x = 592,518,593.22
  5. Step 5: Solve for x
    x = 592,518,593.22/28,591.68
  6. Step 6: Final answer
    x = 20,723.46

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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.