Home / 37,688.51-56,538.90-12,730.05

Finding the Fourth Proportional to 37,688.51, 56,538.90 and 12,730.05

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Solution

The fourth proportional to 37,688.51, 56,538.90 and 12,730.05 is: 19,097.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,688.51 : 56,538.90 = 12,730.05 : x
  2. Step 2: Convert to fraction form
    37,688.51/56,538.90 = 12,730.05/x
  3. Step 3: Cross multiply
    37,688.51x = 56,538.90 × 12,730.05
  4. Step 4: Simplify right side
    37,688.51x = 719,743,023.95
  5. Step 5: Solve for x
    x = 719,743,023.95/37,688.51
  6. Step 6: Final answer
    x = 19,097.15

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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.