Home / 25,139.04-37,679.40-20,214.24

Finding the Fourth Proportional to 25,139.04, 37,679.40 and 20,214.24

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Solution

The fourth proportional to 25,139.04, 37,679.40 and 20,214.24 is: 30,297.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,139.04 : 37,679.40 = 20,214.24 : x
  2. Step 2: Convert to fraction form
    25,139.04/37,679.40 = 20,214.24/x
  3. Step 3: Cross multiply
    25,139.04x = 37,679.40 × 20,214.24
  4. Step 4: Simplify right side
    25,139.04x = 761,660,434.66
  5. Step 5: Solve for x
    x = 761,660,434.66/25,139.04
  6. Step 6: Final answer
    x = 30,297.91

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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.