Home / 31,440.90-47,121.12-14,764.08

Finding the Fourth Proportional to 31,440.90, 47,121.12 and 14,764.08

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Solution

The fourth proportional to 31,440.90, 47,121.12 and 14,764.08 is: 22,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.90 : 47,121.12 = 14,764.08 : x
  2. Step 2: Convert to fraction form
    31,440.90/47,121.12 = 14,764.08/x
  3. Step 3: Cross multiply
    31,440.90x = 47,121.12 × 14,764.08
  4. Step 4: Simplify right side
    31,440.90x = 695,699,985.37
  5. Step 5: Solve for x
    x = 695,699,985.37/31,440.90
  6. Step 6: Final answer
    x = 22,127.23

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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.