Home / 21,277.61-31,915.93-5,695.23

Finding the Fourth Proportional to 21,277.61, 31,915.93 and 5,695.23

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Solution

The fourth proportional to 21,277.61, 31,915.93 and 5,695.23 is: 8,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.61 : 31,915.93 = 5,695.23 : x
  2. Step 2: Convert to fraction form
    21,277.61/31,915.93 = 5,695.23/x
  3. Step 3: Cross multiply
    21,277.61x = 31,915.93 × 5,695.23
  4. Step 4: Simplify right side
    21,277.61x = 181,768,562.01
  5. Step 5: Solve for x
    x = 181,768,562.01/21,277.61
  6. Step 6: Final answer
    x = 8,542.72

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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.