Home / 31,639.99-47,436.56-19,157.08

Finding the Fourth Proportional to 31,639.99, 47,436.56 and 19,157.08

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Solution

The fourth proportional to 31,639.99, 47,436.56 and 19,157.08 is: 28,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,639.99 : 47,436.56 = 19,157.08 : x
  2. Step 2: Convert to fraction form
    31,639.99/47,436.56 = 19,157.08/x
  3. Step 3: Cross multiply
    31,639.99x = 47,436.56 × 19,157.08
  4. Step 4: Simplify right side
    31,639.99x = 908,746,108.55
  5. Step 5: Solve for x
    x = 908,746,108.55/31,639.99
  6. Step 6: Final answer
    x = 28,721.44

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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.