Home / 25,931.15-38,898.77-12,776.35

Finding the Fourth Proportional to 25,931.15, 38,898.77 and 12,776.35

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Solution

The fourth proportional to 25,931.15, 38,898.77 and 12,776.35 is: 19,165.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,931.15 : 38,898.77 = 12,776.35 : x
  2. Step 2: Convert to fraction form
    25,931.15/38,898.77 = 12,776.35/x
  3. Step 3: Cross multiply
    25,931.15x = 38,898.77 × 12,776.35
  4. Step 4: Simplify right side
    25,931.15x = 496,984,300.09
  5. Step 5: Solve for x
    x = 496,984,300.09/25,931.15
  6. Step 6: Final answer
    x = 19,165.53

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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.