Home / 39,457.40-59,164.20-13,147.79

Finding the Fourth Proportional to 39,457.40, 59,164.20 and 13,147.79

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Solution

The fourth proportional to 39,457.40, 59,164.20 and 13,147.79 is: 19,714.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,457.40 : 59,164.20 = 13,147.79 : x
  2. Step 2: Convert to fraction form
    39,457.40/59,164.20 = 13,147.79/x
  3. Step 3: Cross multiply
    39,457.40x = 59,164.20 × 13,147.79
  4. Step 4: Simplify right side
    39,457.40x = 777,878,181.30
  5. Step 5: Solve for x
    x = 777,878,181.30/39,457.40
  6. Step 6: Final answer
    x = 19,714.38

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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.