Home / 26,939.72-40,430.64-18,677.93

Finding the Fourth Proportional to 26,939.72, 40,430.64 and 18,677.93

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Solution

The fourth proportional to 26,939.72, 40,430.64 and 18,677.93 is: 28,031.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,939.72 : 40,430.64 = 18,677.93 : x
  2. Step 2: Convert to fraction form
    26,939.72/40,430.64 = 18,677.93/x
  3. Step 3: Cross multiply
    26,939.72x = 40,430.64 × 18,677.93
  4. Step 4: Simplify right side
    26,939.72x = 755,160,461.62
  5. Step 5: Solve for x
    x = 755,160,461.62/26,939.72
  6. Step 6: Final answer
    x = 28,031.49

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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.