Home / 28,688.13-43,032.21-8,966.76

Finding the Fourth Proportional to 28,688.13, 43,032.21 and 8,966.76

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Solution

The fourth proportional to 28,688.13, 43,032.21 and 8,966.76 is: 13,450.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.13 : 43,032.21 = 8,966.76 : x
  2. Step 2: Convert to fraction form
    28,688.13/43,032.21 = 8,966.76/x
  3. Step 3: Cross multiply
    28,688.13x = 43,032.21 × 8,966.76
  4. Step 4: Simplify right side
    28,688.13x = 385,859,499.34
  5. Step 5: Solve for x
    x = 385,859,499.34/28,688.13
  6. Step 6: Final answer
    x = 13,450.14

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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.