Home / 21,569.01-29,765.88-13,069.32

Finding the Fourth Proportional to 21,569.01, 29,765.88 and 13,069.32

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Solution

The fourth proportional to 21,569.01, 29,765.88 and 13,069.32 is: 18,036.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.01 : 29,765.88 = 13,069.32 : x
  2. Step 2: Convert to fraction form
    21,569.01/29,765.88 = 13,069.32/x
  3. Step 3: Cross multiply
    21,569.01x = 29,765.88 × 13,069.32
  4. Step 4: Simplify right side
    21,569.01x = 389,019,810.80
  5. Step 5: Solve for x
    x = 389,019,810.80/21,569.01
  6. Step 6: Final answer
    x = 18,036.05

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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.