Home / 19,708.86-29,570.28-12,304.74

Finding the Fourth Proportional to 19,708.86, 29,570.28 and 12,304.74

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Solution

The fourth proportional to 19,708.86, 29,570.28 and 12,304.74 is: 18,461.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.86 : 29,570.28 = 12,304.74 : x
  2. Step 2: Convert to fraction form
    19,708.86/29,570.28 = 12,304.74/x
  3. Step 3: Cross multiply
    19,708.86x = 29,570.28 × 12,304.74
  4. Step 4: Simplify right side
    19,708.86x = 363,854,607.13
  5. Step 5: Solve for x
    x = 363,854,607.13/19,708.86
  6. Step 6: Final answer
    x = 18,461.47

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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.