Home / 37,688.98-56,534.67-18,958.78

Finding the Fourth Proportional to 37,688.98, 56,534.67 and 18,958.78

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Solution

The fourth proportional to 37,688.98, 56,534.67 and 18,958.78 is: 28,438.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,688.98 : 56,534.67 = 18,958.78 : x
  2. Step 2: Convert to fraction form
    37,688.98/56,534.67 = 18,958.78/x
  3. Step 3: Cross multiply
    37,688.98x = 56,534.67 × 18,958.78
  4. Step 4: Simplify right side
    37,688.98x = 1,071,828,370.90
  5. Step 5: Solve for x
    x = 1,071,828,370.90/37,688.98
  6. Step 6: Final answer
    x = 28,438.77

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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.