Home / 31,390.05-47,085.06-11,673.57

Finding the Fourth Proportional to 31,390.05, 47,085.06 and 11,673.57

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Solution

The fourth proportional to 31,390.05, 47,085.06 and 11,673.57 is: 17,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,390.05 : 47,085.06 = 11,673.57 : x
  2. Step 2: Convert to fraction form
    31,390.05/47,085.06 = 11,673.57/x
  3. Step 3: Cross multiply
    31,390.05x = 47,085.06 × 11,673.57
  4. Step 4: Simplify right side
    31,390.05x = 549,650,743.86
  5. Step 5: Solve for x
    x = 549,650,743.86/31,390.05
  6. Step 6: Final answer
    x = 17,510.35

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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.