Home / 28,317.60-42,492.60-19,558.80

Finding the Fourth Proportional to 28,317.60, 42,492.60 and 19,558.80

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Solution

The fourth proportional to 28,317.60, 42,492.60 and 19,558.80 is: 29,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.60 : 42,492.60 = 19,558.80 : x
  2. Step 2: Convert to fraction form
    28,317.60/42,492.60 = 19,558.80/x
  3. Step 3: Cross multiply
    28,317.60x = 42,492.60 × 19,558.80
  4. Step 4: Simplify right side
    28,317.60x = 831,104,264.88
  5. Step 5: Solve for x
    x = 831,104,264.88/28,317.60
  6. Step 6: Final answer
    x = 29,349.39

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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.