Home / 31,347.15-47,027.89-13,580.76

Finding the Fourth Proportional to 31,347.15, 47,027.89 and 13,580.76

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Solution

The fourth proportional to 31,347.15, 47,027.89 and 13,580.76 is: 20,374.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.15 : 47,027.89 = 13,580.76 : x
  2. Step 2: Convert to fraction form
    31,347.15/47,027.89 = 13,580.76/x
  3. Step 3: Cross multiply
    31,347.15x = 47,027.89 × 13,580.76
  4. Step 4: Simplify right side
    31,347.15x = 638,674,680.73
  5. Step 5: Solve for x
    x = 638,674,680.73/31,347.15
  6. Step 6: Final answer
    x = 20,374.25

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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.