Home / 28,281.27-42,422.01-9,561.45

Finding the Fourth Proportional to 28,281.27, 42,422.01 and 9,561.45

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Solution

The fourth proportional to 28,281.27, 42,422.01 and 9,561.45 is: 14,342.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.27 : 42,422.01 = 9,561.45 : x
  2. Step 2: Convert to fraction form
    28,281.27/42,422.01 = 9,561.45/x
  3. Step 3: Cross multiply
    28,281.27x = 42,422.01 × 9,561.45
  4. Step 4: Simplify right side
    28,281.27x = 405,615,927.51
  5. Step 5: Solve for x
    x = 405,615,927.51/28,281.27
  6. Step 6: Final answer
    x = 14,342.21

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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.