Home / 39,608.10-54,659.12-21,703.10

Finding the Fourth Proportional to 39,608.10, 54,659.12 and 21,703.10

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Solution

The fourth proportional to 39,608.10, 54,659.12 and 21,703.10 is: 29,950.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,608.10 : 54,659.12 = 21,703.10 : x
  2. Step 2: Convert to fraction form
    39,608.10/54,659.12 = 21,703.10/x
  3. Step 3: Cross multiply
    39,608.10x = 54,659.12 × 21,703.10
  4. Step 4: Simplify right side
    39,608.10x = 1,186,271,965.46
  5. Step 5: Solve for x
    x = 1,186,271,965.46/39,608.10
  6. Step 6: Final answer
    x = 29,950.24

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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.