Home / 35,510.56-48,999.12-20,403.76

Finding the Fourth Proportional to 35,510.56, 48,999.12 and 20,403.76

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Solution

The fourth proportional to 35,510.56, 48,999.12 and 20,403.76 is: 28,154.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,510.56 : 48,999.12 = 20,403.76 : x
  2. Step 2: Convert to fraction form
    35,510.56/48,999.12 = 20,403.76/x
  3. Step 3: Cross multiply
    35,510.56x = 48,999.12 × 20,403.76
  4. Step 4: Simplify right side
    35,510.56x = 999,766,284.69
  5. Step 5: Solve for x
    x = 999,766,284.69/35,510.56
  6. Step 6: Final answer
    x = 28,154.06

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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.