Home / 35,220.28-48,603.36-20,889.76

Finding the Fourth Proportional to 35,220.28, 48,603.36 and 20,889.76

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Solution

The fourth proportional to 35,220.28, 48,603.36 and 20,889.76 is: 28,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,220.28 : 48,603.36 = 20,889.76 : x
  2. Step 2: Convert to fraction form
    35,220.28/48,603.36 = 20,889.76/x
  3. Step 3: Cross multiply
    35,220.28x = 48,603.36 × 20,889.76
  4. Step 4: Simplify right side
    35,220.28x = 1,015,312,525.59
  5. Step 5: Solve for x
    x = 1,015,312,525.59/35,220.28
  6. Step 6: Final answer
    x = 28,827.50

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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.