Home / 35,343.78-48,754.08-21,188.40

Finding the Fourth Proportional to 35,343.78, 48,754.08 and 21,188.40

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Solution

The fourth proportional to 35,343.78, 48,754.08 and 21,188.40 is: 29,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,343.78 : 48,754.08 = 21,188.40 : x
  2. Step 2: Convert to fraction form
    35,343.78/48,754.08 = 21,188.40/x
  3. Step 3: Cross multiply
    35,343.78x = 48,754.08 × 21,188.40
  4. Step 4: Simplify right side
    35,343.78x = 1,033,020,948.67
  5. Step 5: Solve for x
    x = 1,033,020,948.67/35,343.78
  6. Step 6: Final answer
    x = 29,227.80

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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.