Home / 47,257.60-70,828.80-20,934.40

Finding the Fourth Proportional to 47,257.60, 70,828.80 and 20,934.40

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Solution

The fourth proportional to 47,257.60, 70,828.80 and 20,934.40 is: 31,376.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,257.60 : 70,828.80 = 20,934.40 : x
  2. Step 2: Convert to fraction form
    47,257.60/70,828.80 = 20,934.40/x
  3. Step 3: Cross multiply
    47,257.60x = 70,828.80 × 20,934.40
  4. Step 4: Simplify right side
    47,257.60x = 1,482,758,430.72
  5. Step 5: Solve for x
    x = 1,482,758,430.72/47,257.60
  6. Step 6: Final answer
    x = 31,376.08

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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.