Home / 19,390.60-29,088.65-6,239.91

Finding the Fourth Proportional to 19,390.60, 29,088.65 and 6,239.91

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Solution

The fourth proportional to 19,390.60, 29,088.65 and 6,239.91 is: 9,360.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.60 : 29,088.65 = 6,239.91 : x
  2. Step 2: Convert to fraction form
    19,390.60/29,088.65 = 6,239.91/x
  3. Step 3: Cross multiply
    19,390.60x = 29,088.65 × 6,239.91
  4. Step 4: Simplify right side
    19,390.60x = 181,510,558.02
  5. Step 5: Solve for x
    x = 181,510,558.02/19,390.60
  6. Step 6: Final answer
    x = 9,360.75

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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.