Home / 31,365.38-47,047.70-15,779.54

Finding the Fourth Proportional to 31,365.38, 47,047.70 and 15,779.54

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Solution

The fourth proportional to 31,365.38, 47,047.70 and 15,779.54 is: 23,669.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,365.38 : 47,047.70 = 15,779.54 : x
  2. Step 2: Convert to fraction form
    31,365.38/47,047.70 = 15,779.54/x
  3. Step 3: Cross multiply
    31,365.38x = 47,047.70 × 15,779.54
  4. Step 4: Simplify right side
    31,365.38x = 742,391,064.06
  5. Step 5: Solve for x
    x = 742,391,064.06/31,365.38
  6. Step 6: Final answer
    x = 23,669.12

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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.