Home / 28,437.51-42,620.62-21,888.39

Finding the Fourth Proportional to 28,437.51, 42,620.62 and 21,888.39

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Solution

The fourth proportional to 28,437.51, 42,620.62 and 21,888.39 is: 32,805.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,437.51 : 42,620.62 = 21,888.39 : x
  2. Step 2: Convert to fraction form
    28,437.51/42,620.62 = 21,888.39/x
  3. Step 3: Cross multiply
    28,437.51x = 42,620.62 × 21,888.39
  4. Step 4: Simplify right side
    28,437.51x = 932,896,752.60
  5. Step 5: Solve for x
    x = 932,896,752.60/28,437.51
  6. Step 6: Final answer
    x = 32,805.15

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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.