Home / 35,615.80-49,148.37-20,509.00

Finding the Fourth Proportional to 35,615.80, 49,148.37 and 20,509.00

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Solution

The fourth proportional to 35,615.80, 49,148.37 and 20,509.00 is: 28,301.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,615.80 : 49,148.37 = 20,509.00 : x
  2. Step 2: Convert to fraction form
    35,615.80/49,148.37 = 20,509.00/x
  3. Step 3: Cross multiply
    35,615.80x = 49,148.37 × 20,509.00
  4. Step 4: Simplify right side
    35,615.80x = 1,007,983,797.46
  5. Step 5: Solve for x
    x = 1,007,983,797.46/35,615.80
  6. Step 6: Final answer
    x = 28,301.59

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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.