Home / 28,374.51-42,532.19-15,876.21

Finding the Fourth Proportional to 28,374.51, 42,532.19 and 15,876.21

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Solution

The fourth proportional to 28,374.51, 42,532.19 and 15,876.21 is: 23,797.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.51 : 42,532.19 = 15,876.21 : x
  2. Step 2: Convert to fraction form
    28,374.51/42,532.19 = 15,876.21/x
  3. Step 3: Cross multiply
    28,374.51x = 42,532.19 × 15,876.21
  4. Step 4: Simplify right side
    28,374.51x = 675,249,980.20
  5. Step 5: Solve for x
    x = 675,249,980.20/28,374.51
  6. Step 6: Final answer
    x = 23,797.77

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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.