Home / 14,285.86-21,420.93-4,422.40

Finding the Fourth Proportional to 14,285.86, 21,420.93 and 4,422.40

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Solution

The fourth proportional to 14,285.86, 21,420.93 and 4,422.40 is: 6,631.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.86 : 21,420.93 = 4,422.40 : x
  2. Step 2: Convert to fraction form
    14,285.86/21,420.93 = 4,422.40/x
  3. Step 3: Cross multiply
    14,285.86x = 21,420.93 × 4,422.40
  4. Step 4: Simplify right side
    14,285.86x = 94,731,920.83
  5. Step 5: Solve for x
    x = 94,731,920.83/14,285.86
  6. Step 6: Final answer
    x = 6,631.17

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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.