Home / 21,052.40-29,012.36-15,073.68

Finding the Fourth Proportional to 21,052.40, 29,012.36 and 15,073.68

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Solution

The fourth proportional to 21,052.40, 29,012.36 and 15,073.68 is: 20,773.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.40 : 29,012.36 = 15,073.68 : x
  2. Step 2: Convert to fraction form
    21,052.40/29,012.36 = 15,073.68/x
  3. Step 3: Cross multiply
    21,052.40x = 29,012.36 × 15,073.68
  4. Step 4: Simplify right side
    21,052.40x = 437,323,030.68
  5. Step 5: Solve for x
    x = 437,323,030.68/21,052.40
  6. Step 6: Final answer
    x = 20,773.07

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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.