Home / 21,503.04-29,677.44-13,124.32

Finding the Fourth Proportional to 21,503.04, 29,677.44 and 13,124.32

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Solution

The fourth proportional to 21,503.04, 29,677.44 and 13,124.32 is: 18,113.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.04 : 29,677.44 = 13,124.32 : x
  2. Step 2: Convert to fraction form
    21,503.04/29,677.44 = 13,124.32/x
  3. Step 3: Cross multiply
    21,503.04x = 29,677.44 × 13,124.32
  4. Step 4: Simplify right side
    21,503.04x = 389,496,219.34
  5. Step 5: Solve for x
    x = 389,496,219.34/21,503.04
  6. Step 6: Final answer
    x = 18,113.54

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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.