Home / 40,289.58-60,434.37-12,587.58

Finding the Fourth Proportional to 40,289.58, 60,434.37 and 12,587.58

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Solution

The fourth proportional to 40,289.58, 60,434.37 and 12,587.58 is: 18,881.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,289.58 : 60,434.37 = 12,587.58 : x
  2. Step 2: Convert to fraction form
    40,289.58/60,434.37 = 12,587.58/x
  3. Step 3: Cross multiply
    40,289.58x = 60,434.37 × 12,587.58
  4. Step 4: Simplify right side
    40,289.58x = 760,722,467.12
  5. Step 5: Solve for x
    x = 760,722,467.12/40,289.58
  6. Step 6: Final answer
    x = 18,881.37

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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.