Home / 30,272.40-45,389.16-12,737.52

Finding the Fourth Proportional to 30,272.40, 45,389.16 and 12,737.52

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Solution

The fourth proportional to 30,272.40, 45,389.16 and 12,737.52 is: 19,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,272.40 : 45,389.16 = 12,737.52 : x
  2. Step 2: Convert to fraction form
    30,272.40/45,389.16 = 12,737.52/x
  3. Step 3: Cross multiply
    30,272.40x = 45,389.16 × 12,737.52
  4. Step 4: Simplify right side
    30,272.40x = 578,145,333.28
  5. Step 5: Solve for x
    x = 578,145,333.28/30,272.40
  6. Step 6: Final answer
    x = 19,098.10

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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.