Home / 28,514.48-42,748.61-11,886.98

Finding the Fourth Proportional to 28,514.48, 42,748.61 and 11,886.98

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Solution

The fourth proportional to 28,514.48, 42,748.61 and 11,886.98 is: 17,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.48 : 42,748.61 = 11,886.98 : x
  2. Step 2: Convert to fraction form
    28,514.48/42,748.61 = 11,886.98/x
  3. Step 3: Cross multiply
    28,514.48x = 42,748.61 × 11,886.98
  4. Step 4: Simplify right side
    28,514.48x = 508,151,598.92
  5. Step 5: Solve for x
    x = 508,151,598.92/28,514.48
  6. Step 6: Final answer
    x = 17,820.83

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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.