Home / 35,412.20-53,118.30-20,637.80

Finding the Fourth Proportional to 35,412.20, 53,118.30 and 20,637.80

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Solution

The fourth proportional to 35,412.20, 53,118.30 and 20,637.80 is: 30,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,412.20 : 53,118.30 = 20,637.80 : x
  2. Step 2: Convert to fraction form
    35,412.20/53,118.30 = 20,637.80/x
  3. Step 3: Cross multiply
    35,412.20x = 53,118.30 × 20,637.80
  4. Step 4: Simplify right side
    35,412.20x = 1,096,244,851.74
  5. Step 5: Solve for x
    x = 1,096,244,851.74/35,412.20
  6. Step 6: Final answer
    x = 30,956.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.