Home / 39,337.65-54,355.01-31,445.01

Finding the Fourth Proportional to 39,337.65, 54,355.01 and 31,445.01

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Solution

The fourth proportional to 39,337.65, 54,355.01 and 31,445.01 is: 43,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,337.65 : 54,355.01 = 31,445.01 : x
  2. Step 2: Convert to fraction form
    39,337.65/54,355.01 = 31,445.01/x
  3. Step 3: Cross multiply
    39,337.65x = 54,355.01 × 31,445.01
  4. Step 4: Simplify right side
    39,337.65x = 1,709,193,675.78
  5. Step 5: Solve for x
    x = 1,709,193,675.78/39,337.65
  6. Step 6: Final answer
    x = 43,449.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.