Home / 20,888.74-31,345.41-9,795.52

Finding the Fourth Proportional to 20,888.74, 31,345.41 and 9,795.52

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Solution

The fourth proportional to 20,888.74, 31,345.41 and 9,795.52 is: 14,699.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.74 : 31,345.41 = 9,795.52 : x
  2. Step 2: Convert to fraction form
    20,888.74/31,345.41 = 9,795.52/x
  3. Step 3: Cross multiply
    20,888.74x = 31,345.41 × 9,795.52
  4. Step 4: Simplify right side
    20,888.74x = 307,044,433.84
  5. Step 5: Solve for x
    x = 307,044,433.84/20,888.74
  6. Step 6: Final answer
    x = 14,699.04

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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.