Home / 28,931.67-39,933-16,363.71

Finding the Fourth Proportional to 28,931.67, 39,933 and 16,363.71

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Solution

The fourth proportional to 28,931.67, 39,933 and 16,363.71 is: 22,586.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.67 : 39,933 = 16,363.71 : x
  2. Step 2: Convert to fraction form
    28,931.67/39,933 = 16,363.71/x
  3. Step 3: Cross multiply
    28,931.67x = 39,933 × 16,363.71
  4. Step 4: Simplify right side
    28,931.67x = 653,452,031.43
  5. Step 5: Solve for x
    x = 653,452,031.43/28,931.67
  6. Step 6: Final answer
    x = 22,586.05

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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.