Home / 30,807.08-42,515.70-17,376.92

Finding the Fourth Proportional to 30,807.08, 42,515.70 and 17,376.92

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Solution

The fourth proportional to 30,807.08, 42,515.70 and 17,376.92 is: 23,981.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,807.08 : 42,515.70 = 17,376.92 : x
  2. Step 2: Convert to fraction form
    30,807.08/42,515.70 = 17,376.92/x
  3. Step 3: Cross multiply
    30,807.08x = 42,515.70 × 17,376.92
  4. Step 4: Simplify right side
    30,807.08x = 738,791,917.64
  5. Step 5: Solve for x
    x = 738,791,917.64/30,807.08
  6. Step 6: Final answer
    x = 23,981.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.