Home / 21,980.87-32,916.61-15,376.13

Finding the Fourth Proportional to 21,980.87, 32,916.61 and 15,376.13

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Solution

The fourth proportional to 21,980.87, 32,916.61 and 15,376.13 is: 23,025.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,980.87 : 32,916.61 = 15,376.13 : x
  2. Step 2: Convert to fraction form
    21,980.87/32,916.61 = 15,376.13/x
  3. Step 3: Cross multiply
    21,980.87x = 32,916.61 × 15,376.13
  4. Step 4: Simplify right side
    21,980.87x = 506,130,052.59
  5. Step 5: Solve for x
    x = 506,130,052.59/21,980.87
  6. Step 6: Final answer
    x = 23,025.93

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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.