Home / 30,802.94-42,508.29-17,005.70

Finding the Fourth Proportional to 30,802.94, 42,508.29 and 17,005.70

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Solution

The fourth proportional to 30,802.94, 42,508.29 and 17,005.70 is: 23,467.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,802.94 : 42,508.29 = 17,005.70 : x
  2. Step 2: Convert to fraction form
    30,802.94/42,508.29 = 17,005.70/x
  3. Step 3: Cross multiply
    30,802.94x = 42,508.29 × 17,005.70
  4. Step 4: Simplify right side
    30,802.94x = 722,883,014.71
  5. Step 5: Solve for x
    x = 722,883,014.71/30,802.94
  6. Step 6: Final answer
    x = 23,467.99

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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.