Home / 28,985.60-43,487.74-13,196.28

Finding the Fourth Proportional to 28,985.60, 43,487.74 and 13,196.28

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Solution

The fourth proportional to 28,985.60, 43,487.74 and 13,196.28 is: 19,798.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.60 : 43,487.74 = 13,196.28 : x
  2. Step 2: Convert to fraction form
    28,985.60/43,487.74 = 13,196.28/x
  3. Step 3: Cross multiply
    28,985.60x = 43,487.74 × 13,196.28
  4. Step 4: Simplify right side
    28,985.60x = 573,876,393.61
  5. Step 5: Solve for x
    x = 573,876,393.61/28,985.60
  6. Step 6: Final answer
    x = 19,798.67

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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.