Home / 30,737.70-46,117.55-12,972.78

Finding the Fourth Proportional to 30,737.70, 46,117.55 and 12,972.78

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Solution

The fourth proportional to 30,737.70, 46,117.55 and 12,972.78 is: 19,463.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,737.70 : 46,117.55 = 12,972.78 : x
  2. Step 2: Convert to fraction form
    30,737.70/46,117.55 = 12,972.78/x
  3. Step 3: Cross multiply
    30,737.70x = 46,117.55 × 12,972.78
  4. Step 4: Simplify right side
    30,737.70x = 598,272,830.29
  5. Step 5: Solve for x
    x = 598,272,830.29/30,737.70
  6. Step 6: Final answer
    x = 19,463.81

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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.