Home / 21,219.33-31,818.06-14,565.99

Finding the Fourth Proportional to 21,219.33, 31,818.06 and 14,565.99

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Solution

The fourth proportional to 21,219.33, 31,818.06 and 14,565.99 is: 21,841.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219.33 : 31,818.06 = 14,565.99 : x
  2. Step 2: Convert to fraction form
    21,219.33/31,818.06 = 14,565.99/x
  3. Step 3: Cross multiply
    21,219.33x = 31,818.06 × 14,565.99
  4. Step 4: Simplify right side
    21,219.33x = 463,461,543.78
  5. Step 5: Solve for x
    x = 463,461,543.78/21,219.33
  6. Step 6: Final answer
    x = 21,841.48

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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.