Home / 31,466.40-47,160.72-18,947.04

Finding the Fourth Proportional to 31,466.40, 47,160.72 and 18,947.04

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Solution

The fourth proportional to 31,466.40, 47,160.72 and 18,947.04 is: 28,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,466.40 : 47,160.72 = 18,947.04 : x
  2. Step 2: Convert to fraction form
    31,466.40/47,160.72 = 18,947.04/x
  3. Step 3: Cross multiply
    31,466.40x = 47,160.72 × 18,947.04
  4. Step 4: Simplify right side
    31,466.40x = 893,556,048.27
  5. Step 5: Solve for x
    x = 893,556,048.27/31,466.40
  6. Step 6: Final answer
    x = 28,397.15

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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.