Home / 30,490.86-45,737.82-9,715.98

Finding the Fourth Proportional to 30,490.86, 45,737.82 and 9,715.98

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Solution

The fourth proportional to 30,490.86, 45,737.82 and 9,715.98 is: 14,574.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490.86 : 45,737.82 = 9,715.98 : x
  2. Step 2: Convert to fraction form
    30,490.86/45,737.82 = 9,715.98/x
  3. Step 3: Cross multiply
    30,490.86x = 45,737.82 × 9,715.98
  4. Step 4: Simplify right side
    30,490.86x = 444,387,744.36
  5. Step 5: Solve for x
    x = 444,387,744.36/30,490.86
  6. Step 6: Final answer
    x = 14,574.46

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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.