Home / 20,877.95-31,297.94-10,870.95

Finding the Fourth Proportional to 20,877.95, 31,297.94 and 10,870.95

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Solution

The fourth proportional to 20,877.95, 31,297.94 and 10,870.95 is: 16,296.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.95 : 31,297.94 = 10,870.95 : x
  2. Step 2: Convert to fraction form
    20,877.95/31,297.94 = 10,870.95/x
  3. Step 3: Cross multiply
    20,877.95x = 31,297.94 × 10,870.95
  4. Step 4: Simplify right side
    20,877.95x = 340,238,285.71
  5. Step 5: Solve for x
    x = 340,238,285.71/20,877.95
  6. Step 6: Final answer
    x = 16,296.54

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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.