Home / 35,343.81-48,781.58-21,000.92

Finding the Fourth Proportional to 35,343.81, 48,781.58 and 21,000.92

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Solution

The fourth proportional to 35,343.81, 48,781.58 and 21,000.92 is: 28,985.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,343.81 : 48,781.58 = 21,000.92 : x
  2. Step 2: Convert to fraction form
    35,343.81/48,781.58 = 21,000.92/x
  3. Step 3: Cross multiply
    35,343.81x = 48,781.58 × 21,000.92
  4. Step 4: Simplify right side
    35,343.81x = 1,024,457,710.14
  5. Step 5: Solve for x
    x = 1,024,457,710.14/35,343.81
  6. Step 6: Final answer
    x = 28,985.49

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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.