Home / 22,737.50-31,376.53-12,528.21

Finding the Fourth Proportional to 22,737.50, 31,376.53 and 12,528.21

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Solution

The fourth proportional to 22,737.50, 31,376.53 and 12,528.21 is: 17,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,737.50 : 31,376.53 = 12,528.21 : x
  2. Step 2: Convert to fraction form
    22,737.50/31,376.53 = 12,528.21/x
  3. Step 3: Cross multiply
    22,737.50x = 31,376.53 × 12,528.21
  4. Step 4: Simplify right side
    22,737.50x = 393,091,890.23
  5. Step 5: Solve for x
    x = 393,091,890.23/22,737.50
  6. Step 6: Final answer
    x = 17,288.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.