Home / 40,985.28-56,553.12-23,990.40

Finding the Fourth Proportional to 40,985.28, 56,553.12 and 23,990.40

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Solution

The fourth proportional to 40,985.28, 56,553.12 and 23,990.40 is: 33,102.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,985.28 : 56,553.12 = 23,990.40 : x
  2. Step 2: Convert to fraction form
    40,985.28/56,553.12 = 23,990.40/x
  3. Step 3: Cross multiply
    40,985.28x = 56,553.12 × 23,990.40
  4. Step 4: Simplify right side
    40,985.28x = 1,356,731,970.05
  5. Step 5: Solve for x
    x = 1,356,731,970.05/40,985.28
  6. Step 6: Final answer
    x = 33,102.91

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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.