Home / 21,405.03-32,113.46-8,930.93

Finding the Fourth Proportional to 21,405.03, 32,113.46 and 8,930.93

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Solution

The fourth proportional to 21,405.03, 32,113.46 and 8,930.93 is: 13,398.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405.03 : 32,113.46 = 8,930.93 : x
  2. Step 2: Convert to fraction form
    21,405.03/32,113.46 = 8,930.93/x
  3. Step 3: Cross multiply
    21,405.03x = 32,113.46 × 8,930.93
  4. Step 4: Simplify right side
    21,405.03x = 286,802,925.08
  5. Step 5: Solve for x
    x = 286,802,925.08/21,405.03
  6. Step 6: Final answer
    x = 13,398.86

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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.