Home / 31,514.81-47,258.85-11,779.57

Finding the Fourth Proportional to 31,514.81, 47,258.85 and 11,779.57

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Solution

The fourth proportional to 31,514.81, 47,258.85 and 11,779.57 is: 17,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,514.81 : 47,258.85 = 11,779.57 : x
  2. Step 2: Convert to fraction form
    31,514.81/47,258.85 = 11,779.57/x
  3. Step 3: Cross multiply
    31,514.81x = 47,258.85 × 11,779.57
  4. Step 4: Simplify right side
    31,514.81x = 556,688,695.40
  5. Step 5: Solve for x
    x = 556,688,695.40/31,514.81
  6. Step 6: Final answer
    x = 17,664.35

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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.