Home / 21,646.23-29,871.56-12,214.59

Finding the Fourth Proportional to 21,646.23, 29,871.56 and 12,214.59

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Solution

The fourth proportional to 21,646.23, 29,871.56 and 12,214.59 is: 16,856.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,646.23 : 29,871.56 = 12,214.59 : x
  2. Step 2: Convert to fraction form
    21,646.23/29,871.56 = 12,214.59/x
  3. Step 3: Cross multiply
    21,646.23x = 29,871.56 × 12,214.59
  4. Step 4: Simplify right side
    21,646.23x = 364,868,888.60
  5. Step 5: Solve for x
    x = 364,868,888.60/21,646.23
  6. Step 6: Final answer
    x = 16,856.00

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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.