Home / 21,303.11-31,943.47-9,451.74

Finding the Fourth Proportional to 21,303.11, 31,943.47 and 9,451.74

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Solution

The fourth proportional to 21,303.11, 31,943.47 and 9,451.74 is: 14,172.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.11 : 31,943.47 = 9,451.74 : x
  2. Step 2: Convert to fraction form
    21,303.11/31,943.47 = 9,451.74/x
  3. Step 3: Cross multiply
    21,303.11x = 31,943.47 × 9,451.74
  4. Step 4: Simplify right side
    21,303.11x = 301,921,451.57
  5. Step 5: Solve for x
    x = 301,921,451.57/21,303.11
  6. Step 6: Final answer
    x = 14,172.65

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1.5x scale

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.