Home / 21,740.16-29,990.75-14,183.00

Finding the Fourth Proportional to 21,740.16, 29,990.75 and 14,183.00

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Solution

The fourth proportional to 21,740.16, 29,990.75 and 14,183.00 is: 19,565.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740.16 : 29,990.75 = 14,183.00 : x
  2. Step 2: Convert to fraction form
    21,740.16/29,990.75 = 14,183.00/x
  3. Step 3: Cross multiply
    21,740.16x = 29,990.75 × 14,183.00
  4. Step 4: Simplify right side
    21,740.16x = 425,358,586.38
  5. Step 5: Solve for x
    x = 425,358,586.38/21,740.16
  6. Step 6: Final answer
    x = 19,565.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.