Home / 19,154.08-28,750.48-13,613.68

Finding the Fourth Proportional to 19,154.08, 28,750.48 and 13,613.68

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Solution

The fourth proportional to 19,154.08, 28,750.48 and 13,613.68 is: 20,434.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154.08 : 28,750.48 = 13,613.68 : x
  2. Step 2: Convert to fraction form
    19,154.08/28,750.48 = 13,613.68/x
  3. Step 3: Cross multiply
    19,154.08x = 28,750.48 × 13,613.68
  4. Step 4: Simplify right side
    19,154.08x = 391,399,834.57
  5. Step 5: Solve for x
    x = 391,399,834.57/19,154.08
  6. Step 6: Final answer
    x = 20,434.28

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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.