Home / 37,881.81-56,822.63-12,909.87

Finding the Fourth Proportional to 37,881.81, 56,822.63 and 12,909.87

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Solution

The fourth proportional to 37,881.81, 56,822.63 and 12,909.87 is: 19,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,881.81 : 56,822.63 = 12,909.87 : x
  2. Step 2: Convert to fraction form
    37,881.81/56,822.63 = 12,909.87/x
  3. Step 3: Cross multiply
    37,881.81x = 56,822.63 × 12,909.87
  4. Step 4: Simplify right side
    37,881.81x = 733,572,701.81
  5. Step 5: Solve for x
    x = 733,572,701.81/37,881.81
  6. Step 6: Final answer
    x = 19,364.77

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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.