Home / 21,725.04-29,980.98-14,176.20

Finding the Fourth Proportional to 21,725.04, 29,980.98 and 14,176.20

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Solution

The fourth proportional to 21,725.04, 29,980.98 and 14,176.20 is: 19,563.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,725.04 : 29,980.98 = 14,176.20 : x
  2. Step 2: Convert to fraction form
    21,725.04/29,980.98 = 14,176.20/x
  3. Step 3: Cross multiply
    21,725.04x = 29,980.98 × 14,176.20
  4. Step 4: Simplify right side
    21,725.04x = 425,016,368.68
  5. Step 5: Solve for x
    x = 425,016,368.68/21,725.04
  6. Step 6: Final answer
    x = 19,563.43

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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.