Home / 31,477.24-47,215.99-12,757.63

Finding the Fourth Proportional to 31,477.24, 47,215.99 and 12,757.63

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Solution

The fourth proportional to 31,477.24, 47,215.99 and 12,757.63 is: 19,136.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,477.24 : 47,215.99 = 12,757.63 : x
  2. Step 2: Convert to fraction form
    31,477.24/47,215.99 = 12,757.63/x
  3. Step 3: Cross multiply
    31,477.24x = 47,215.99 × 12,757.63
  4. Step 4: Simplify right side
    31,477.24x = 602,364,130.50
  5. Step 5: Solve for x
    x = 602,364,130.50/31,477.24
  6. Step 6: Final answer
    x = 19,136.50

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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.