Home / 28,988.01-43,476.78-13,189.32

Finding the Fourth Proportional to 28,988.01, 43,476.78 and 13,189.32

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Solution

The fourth proportional to 28,988.01, 43,476.78 and 13,189.32 is: 19,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.01 : 43,476.78 = 13,189.32 : x
  2. Step 2: Convert to fraction form
    28,988.01/43,476.78 = 13,189.32/x
  3. Step 3: Cross multiply
    28,988.01x = 43,476.78 × 13,189.32
  4. Step 4: Simplify right side
    28,988.01x = 573,429,163.99
  5. Step 5: Solve for x
    x = 573,429,163.99/28,988.01
  6. Step 6: Final answer
    x = 19,781.60

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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.