Home / 28,417.51-42,622.44-20,557.63

Finding the Fourth Proportional to 28,417.51, 42,622.44 and 20,557.63

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Solution

The fourth proportional to 28,417.51, 42,622.44 and 20,557.63 is: 30,833.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,417.51 : 42,622.44 = 20,557.63 : x
  2. Step 2: Convert to fraction form
    28,417.51/42,622.44 = 20,557.63/x
  3. Step 3: Cross multiply
    28,417.51x = 42,622.44 × 20,557.63
  4. Step 4: Simplify right side
    28,417.51x = 876,216,351.22
  5. Step 5: Solve for x
    x = 876,216,351.22/28,417.51
  6. Step 6: Final answer
    x = 30,833.68

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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.