Home / 30,416.06-41,972.64-17,840

Finding the Fourth Proportional to 30,416.06, 41,972.64 and 17,840

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Solution

The fourth proportional to 30,416.06, 41,972.64 and 17,840 is: 24,618.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,416.06 : 41,972.64 = 17,840 : x
  2. Step 2: Convert to fraction form
    30,416.06/41,972.64 = 17,840/x
  3. Step 3: Cross multiply
    30,416.06x = 41,972.64 × 17,840
  4. Step 4: Simplify right side
    30,416.06x = 748,791,897.60
  5. Step 5: Solve for x
    x = 748,791,897.60/30,416.06
  6. Step 6: Final answer
    x = 24,618.31

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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.