Home / 20,998.04-31,641.03-17,381.39

Finding the Fourth Proportional to 20,998.04, 31,641.03 and 17,381.39

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Solution

The fourth proportional to 20,998.04, 31,641.03 and 17,381.39 is: 26,191.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998.04 : 31,641.03 = 17,381.39 : x
  2. Step 2: Convert to fraction form
    20,998.04/31,641.03 = 17,381.39/x
  3. Step 3: Cross multiply
    20,998.04x = 31,641.03 × 17,381.39
  4. Step 4: Simplify right side
    20,998.04x = 549,964,924.23
  5. Step 5: Solve for x
    x = 549,964,924.23/20,998.04
  6. Step 6: Final answer
    x = 26,191.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.