Home / 37,920.80-56,890.58-17,138.72

Finding the Fourth Proportional to 37,920.80, 56,890.58 and 17,138.72

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Solution

The fourth proportional to 37,920.80, 56,890.58 and 17,138.72 is: 25,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,920.80 : 56,890.58 = 17,138.72 : x
  2. Step 2: Convert to fraction form
    37,920.80/56,890.58 = 17,138.72/x
  3. Step 3: Cross multiply
    37,920.80x = 56,890.58 × 17,138.72
  4. Step 4: Simplify right side
    37,920.80x = 975,031,721.26
  5. Step 5: Solve for x
    x = 975,031,721.26/37,920.80
  6. Step 6: Final answer
    x = 25,712.32

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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.