Home / 28,320.05-42,480.80-15,833.09

Finding the Fourth Proportional to 28,320.05, 42,480.80 and 15,833.09

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Solution

The fourth proportional to 28,320.05, 42,480.80 and 15,833.09 is: 23,750.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.05 : 42,480.80 = 15,833.09 : x
  2. Step 2: Convert to fraction form
    28,320.05/42,480.80 = 15,833.09/x
  3. Step 3: Cross multiply
    28,320.05x = 42,480.80 × 15,833.09
  4. Step 4: Simplify right side
    28,320.05x = 672,602,250.51
  5. Step 5: Solve for x
    x = 672,602,250.51/28,320.05
  6. Step 6: Final answer
    x = 23,750.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.