Home / 19,720.76-29,582.55-6,210.77

Finding the Fourth Proportional to 19,720.76, 29,582.55 and 6,210.77

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Solution

The fourth proportional to 19,720.76, 29,582.55 and 6,210.77 is: 9,316.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.76 : 29,582.55 = 6,210.77 : x
  2. Step 2: Convert to fraction form
    19,720.76/29,582.55 = 6,210.77/x
  3. Step 3: Cross multiply
    19,720.76x = 29,582.55 × 6,210.77
  4. Step 4: Simplify right side
    19,720.76x = 183,730,266.15
  5. Step 5: Solve for x
    x = 183,730,266.15/19,720.76
  6. Step 6: Final answer
    x = 9,316.59

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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.