Home / 21,206.48-31,830.48-17,718.92

Finding the Fourth Proportional to 21,206.48, 31,830.48 and 17,718.92

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Solution

The fourth proportional to 21,206.48, 31,830.48 and 17,718.92 is: 26,595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206.48 : 31,830.48 = 17,718.92 : x
  2. Step 2: Convert to fraction form
    21,206.48/31,830.48 = 17,718.92/x
  3. Step 3: Cross multiply
    21,206.48x = 31,830.48 × 17,718.92
  4. Step 4: Simplify right side
    21,206.48x = 564,001,728.68
  5. Step 5: Solve for x
    x = 564,001,728.68/21,206.48
  6. Step 6: Final answer
    x = 26,595.73

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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.