Home / 20,839.72-31,263.54-6,798.58

Finding the Fourth Proportional to 20,839.72, 31,263.54 and 6,798.58

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Solution

The fourth proportional to 20,839.72, 31,263.54 and 6,798.58 is: 10,199.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839.72 : 31,263.54 = 6,798.58 : x
  2. Step 2: Convert to fraction form
    20,839.72/31,263.54 = 6,798.58/x
  3. Step 3: Cross multiply
    20,839.72x = 31,263.54 × 6,798.58
  4. Step 4: Simplify right side
    20,839.72x = 212,547,677.77
  5. Step 5: Solve for x
    x = 212,547,677.77/20,839.72
  6. Step 6: Final answer
    x = 10,199.16

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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.