Home / 47,580.16-71,374.32-12,520

Finding the Fourth Proportional to 47,580.16, 71,374.32 and 12,520

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Solution

The fourth proportional to 47,580.16, 71,374.32 and 12,520 is: 18,781.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,580.16 : 71,374.32 = 12,520 : x
  2. Step 2: Convert to fraction form
    47,580.16/71,374.32 = 12,520/x
  3. Step 3: Cross multiply
    47,580.16x = 71,374.32 × 12,520
  4. Step 4: Simplify right side
    47,580.16x = 893,606,486.40
  5. Step 5: Solve for x
    x = 893,606,486.40/47,580.16
  6. Step 6: Final answer
    x = 18,781.07

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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.