Home / 28,498.16-39,291.48-18,409.52

Finding the Fourth Proportional to 28,498.16, 39,291.48 and 18,409.52

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Solution

The fourth proportional to 28,498.16, 39,291.48 and 18,409.52 is: 25,381.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.16 : 39,291.48 = 18,409.52 : x
  2. Step 2: Convert to fraction form
    28,498.16/39,291.48 = 18,409.52/x
  3. Step 3: Cross multiply
    28,498.16x = 39,291.48 × 18,409.52
  4. Step 4: Simplify right side
    28,498.16x = 723,337,286.89
  5. Step 5: Solve for x
    x = 723,337,286.89/28,498.16
  6. Step 6: Final answer
    x = 25,381.89

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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.