Home / 21,303.52-29,398.80-12,356.22

Finding the Fourth Proportional to 21,303.52, 29,398.80 and 12,356.22

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Solution

The fourth proportional to 21,303.52, 29,398.80 and 12,356.22 is: 17,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.52 : 29,398.80 = 12,356.22 : x
  2. Step 2: Convert to fraction form
    21,303.52/29,398.80 = 12,356.22/x
  3. Step 3: Cross multiply
    21,303.52x = 29,398.80 × 12,356.22
  4. Step 4: Simplify right side
    21,303.52x = 363,258,040.54
  5. Step 5: Solve for x
    x = 363,258,040.54/21,303.52
  6. Step 6: Final answer
    x = 17,051.55

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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.