Home / 35,301.05-48,720.54-21,155.21

Finding the Fourth Proportional to 35,301.05, 48,720.54 and 21,155.21

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Solution

The fourth proportional to 35,301.05, 48,720.54 and 21,155.21 is: 29,197.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,301.05 : 48,720.54 = 21,155.21 : x
  2. Step 2: Convert to fraction form
    35,301.05/48,720.54 = 21,155.21/x
  3. Step 3: Cross multiply
    35,301.05x = 48,720.54 × 21,155.21
  4. Step 4: Simplify right side
    35,301.05x = 1,030,692,905.63
  5. Step 5: Solve for x
    x = 1,030,692,905.63/35,301.05
  6. Step 6: Final answer
    x = 29,197.23

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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.