Home / 31,899.93-44,031.90-20,569.55

Finding the Fourth Proportional to 31,899.93, 44,031.90 and 20,569.55

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Solution

The fourth proportional to 31,899.93, 44,031.90 and 20,569.55 is: 28,392.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,899.93 : 44,031.90 = 20,569.55 : x
  2. Step 2: Convert to fraction form
    31,899.93/44,031.90 = 20,569.55/x
  3. Step 3: Cross multiply
    31,899.93x = 44,031.90 × 20,569.55
  4. Step 4: Simplify right side
    31,899.93x = 905,716,225.62
  5. Step 5: Solve for x
    x = 905,716,225.62/31,899.93
  6. Step 6: Final answer
    x = 28,392.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.