Home / 28,089.04-42,141.36-12,291.24

Finding the Fourth Proportional to 28,089.04, 42,141.36 and 12,291.24

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Solution

The fourth proportional to 28,089.04, 42,141.36 and 12,291.24 is: 18,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.04 : 42,141.36 = 12,291.24 : x
  2. Step 2: Convert to fraction form
    28,089.04/42,141.36 = 12,291.24/x
  3. Step 3: Cross multiply
    28,089.04x = 42,141.36 × 12,291.24
  4. Step 4: Simplify right side
    28,089.04x = 517,969,569.69
  5. Step 5: Solve for x
    x = 517,969,569.69/28,089.04
  6. Step 6: Final answer
    x = 18,440.27

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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.