Home / 28,281.38-39,031.74-16,344.81

Finding the Fourth Proportional to 28,281.38, 39,031.74 and 16,344.81

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Solution

The fourth proportional to 28,281.38, 39,031.74 and 16,344.81 is: 22,557.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.38 : 39,031.74 = 16,344.81 : x
  2. Step 2: Convert to fraction form
    28,281.38/39,031.74 = 16,344.81/x
  3. Step 3: Cross multiply
    28,281.38x = 39,031.74 × 16,344.81
  4. Step 4: Simplify right side
    28,281.38x = 637,966,374.27
  5. Step 5: Solve for x
    x = 637,966,374.27/28,281.38
  6. Step 6: Final answer
    x = 22,557.83

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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.