Home / 28,155.84-38,848.52-16,829.00

Finding the Fourth Proportional to 28,155.84, 38,848.52 and 16,829.00

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Solution

The fourth proportional to 28,155.84, 38,848.52 and 16,829.00 is: 23,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155.84 : 38,848.52 = 16,829.00 : x
  2. Step 2: Convert to fraction form
    28,155.84/38,848.52 = 16,829.00/x
  3. Step 3: Cross multiply
    28,155.84x = 38,848.52 × 16,829.00
  4. Step 4: Simplify right side
    28,155.84x = 653,781,464.69
  5. Step 5: Solve for x
    x = 653,781,464.69/28,155.84
  6. Step 6: Final answer
    x = 23,220.10

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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.