Home / 21,362.60-29,483.98-12,415.26

Finding the Fourth Proportional to 21,362.60, 29,483.98 and 12,415.26

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Solution

The fourth proportional to 21,362.60, 29,483.98 and 12,415.26 is: 17,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.60 : 29,483.98 = 12,415.26 : x
  2. Step 2: Convert to fraction form
    21,362.60/29,483.98 = 12,415.26/x
  3. Step 3: Cross multiply
    21,362.60x = 29,483.98 × 12,415.26
  4. Step 4: Simplify right side
    21,362.60x = 366,051,277.53
  5. Step 5: Solve for x
    x = 366,051,277.53/21,362.60
  6. Step 6: Final answer
    x = 17,135.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.