Home / 35,312.31-48,739.86-20,209.59

Finding the Fourth Proportional to 35,312.31, 48,739.86 and 20,209.59

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Solution

The fourth proportional to 35,312.31, 48,739.86 and 20,209.59 is: 27,894.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,312.31 : 48,739.86 = 20,209.59 : x
  2. Step 2: Convert to fraction form
    35,312.31/48,739.86 = 20,209.59/x
  3. Step 3: Cross multiply
    35,312.31x = 48,739.86 × 20,209.59
  4. Step 4: Simplify right side
    35,312.31x = 985,012,587.26
  5. Step 5: Solve for x
    x = 985,012,587.26/35,312.31
  6. Step 6: Final answer
    x = 27,894.31

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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.