Home / 30,618.54-42,255.81-17,875.62

Finding the Fourth Proportional to 30,618.54, 42,255.81 and 17,875.62

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Solution

The fourth proportional to 30,618.54, 42,255.81 and 17,875.62 is: 24,669.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618.54 : 42,255.81 = 17,875.62 : x
  2. Step 2: Convert to fraction form
    30,618.54/42,255.81 = 17,875.62/x
  3. Step 3: Cross multiply
    30,618.54x = 42,255.81 × 17,875.62
  4. Step 4: Simplify right side
    30,618.54x = 755,348,802.35
  5. Step 5: Solve for x
    x = 755,348,802.35/30,618.54
  6. Step 6: Final answer
    x = 24,669.65

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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.