Home / 42,619.80-63,929.70-14,917.80

Finding the Fourth Proportional to 42,619.80, 63,929.70 and 14,917.80

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Solution

The fourth proportional to 42,619.80, 63,929.70 and 14,917.80 is: 22,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,619.80 : 63,929.70 = 14,917.80 : x
  2. Step 2: Convert to fraction form
    42,619.80/63,929.70 = 14,917.80/x
  3. Step 3: Cross multiply
    42,619.80x = 63,929.70 × 14,917.80
  4. Step 4: Simplify right side
    42,619.80x = 953,690,478.66
  5. Step 5: Solve for x
    x = 953,690,478.66/42,619.80
  6. Step 6: Final answer
    x = 22,376.70

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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.