Home / 28,897.17-43,345.11-13,314.80

Finding the Fourth Proportional to 28,897.17, 43,345.11 and 13,314.80

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Solution

The fourth proportional to 28,897.17, 43,345.11 and 13,314.80 is: 19,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897.17 : 43,345.11 = 13,314.80 : x
  2. Step 2: Convert to fraction form
    28,897.17/43,345.11 = 13,314.80/x
  3. Step 3: Cross multiply
    28,897.17x = 43,345.11 × 13,314.80
  4. Step 4: Simplify right side
    28,897.17x = 577,131,253.90
  5. Step 5: Solve for x
    x = 577,131,253.90/28,897.17
  6. Step 6: Final answer
    x = 19,971.90

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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.