Home / 21,325.70-29,419.96-12,368.01

Finding the Fourth Proportional to 21,325.70, 29,419.96 and 12,368.01

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Solution

The fourth proportional to 21,325.70, 29,419.96 and 12,368.01 is: 17,062.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.70 : 29,419.96 = 12,368.01 : x
  2. Step 2: Convert to fraction form
    21,325.70/29,419.96 = 12,368.01/x
  3. Step 3: Cross multiply
    21,325.70x = 29,419.96 × 12,368.01
  4. Step 4: Simplify right side
    21,325.70x = 363,866,359.48
  5. Step 5: Solve for x
    x = 363,866,359.48/21,325.70
  6. Step 6: Final answer
    x = 17,062.34

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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.