Home / 31,378.14-47,085.57-11,670.30

Finding the Fourth Proportional to 31,378.14, 47,085.57 and 11,670.30

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Solution

The fourth proportional to 31,378.14, 47,085.57 and 11,670.30 is: 17,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.14 : 47,085.57 = 11,670.30 : x
  2. Step 2: Convert to fraction form
    31,378.14/47,085.57 = 11,670.30/x
  3. Step 3: Cross multiply
    31,378.14x = 47,085.57 × 11,670.30
  4. Step 4: Simplify right side
    31,378.14x = 549,502,727.57
  5. Step 5: Solve for x
    x = 549,502,727.57/31,378.14
  6. Step 6: Final answer
    x = 17,512.28

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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.