Home / 40,289.39-60,434.09-12,587.39

Finding the Fourth Proportional to 40,289.39, 60,434.09 and 12,587.39

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Solution

The fourth proportional to 40,289.39, 60,434.09 and 12,587.39 is: 18,881.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,289.39 : 60,434.09 = 12,587.39 : x
  2. Step 2: Convert to fraction form
    40,289.39/60,434.09 = 12,587.39/x
  3. Step 3: Cross multiply
    40,289.39x = 60,434.09 × 12,587.39
  4. Step 4: Simplify right side
    40,289.39x = 760,707,548.27
  5. Step 5: Solve for x
    x = 760,707,548.27/40,289.39
  6. Step 6: Final answer
    x = 18,881.09

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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.