Home / 27,518.10-37,985.67-18,089.70

Finding the Fourth Proportional to 27,518.10, 37,985.67 and 18,089.70

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Solution

The fourth proportional to 27,518.10, 37,985.67 and 18,089.70 is: 24,970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,518.10 : 37,985.67 = 18,089.70 : x
  2. Step 2: Convert to fraction form
    27,518.10/37,985.67 = 18,089.70/x
  3. Step 3: Cross multiply
    27,518.10x = 37,985.67 × 18,089.70
  4. Step 4: Simplify right side
    27,518.10x = 687,149,374.60
  5. Step 5: Solve for x
    x = 687,149,374.60/27,518.10
  6. Step 6: Final answer
    x = 24,970.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.