Home / 28,122.58-38,807.55-16,484.20

Finding the Fourth Proportional to 28,122.58, 38,807.55 and 16,484.20

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Solution

The fourth proportional to 28,122.58, 38,807.55 and 16,484.20 is: 22,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.58 : 38,807.55 = 16,484.20 : x
  2. Step 2: Convert to fraction form
    28,122.58/38,807.55 = 16,484.20/x
  3. Step 3: Cross multiply
    28,122.58x = 38,807.55 × 16,484.20
  4. Step 4: Simplify right side
    28,122.58x = 639,711,415.71
  5. Step 5: Solve for x
    x = 639,711,415.71/28,122.58
  6. Step 6: Final answer
    x = 22,747.25

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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.