Home / 20,869.93-31,303.95-6,078.52

Finding the Fourth Proportional to 20,869.93, 31,303.95 and 6,078.52

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Solution

The fourth proportional to 20,869.93, 31,303.95 and 6,078.52 is: 9,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.93 : 31,303.95 = 6,078.52 : x
  2. Step 2: Convert to fraction form
    20,869.93/31,303.95 = 6,078.52/x
  3. Step 3: Cross multiply
    20,869.93x = 31,303.95 × 6,078.52
  4. Step 4: Simplify right side
    20,869.93x = 190,281,686.15
  5. Step 5: Solve for x
    x = 190,281,686.15/20,869.93
  6. Step 6: Final answer
    x = 9,117.50

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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.