Home / 21,026.07-28,999.55-13,473.11

Finding the Fourth Proportional to 21,026.07, 28,999.55 and 13,473.11

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Solution

The fourth proportional to 21,026.07, 28,999.55 and 13,473.11 is: 18,582.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026.07 : 28,999.55 = 13,473.11 : x
  2. Step 2: Convert to fraction form
    21,026.07/28,999.55 = 13,473.11/x
  3. Step 3: Cross multiply
    21,026.07x = 28,999.55 × 13,473.11
  4. Step 4: Simplify right side
    21,026.07x = 390,714,233.28
  5. Step 5: Solve for x
    x = 390,714,233.28/21,026.07
  6. Step 6: Final answer
    x = 18,582.37

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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.