Home / 38,630.66-53,296.18-31,586.90

Finding the Fourth Proportional to 38,630.66, 53,296.18 and 31,586.90

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Solution

The fourth proportional to 38,630.66, 53,296.18 and 31,586.90 is: 43,578.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,630.66 : 53,296.18 = 31,586.90 : x
  2. Step 2: Convert to fraction form
    38,630.66/53,296.18 = 31,586.90/x
  3. Step 3: Cross multiply
    38,630.66x = 53,296.18 × 31,586.90
  4. Step 4: Simplify right side
    38,630.66x = 1,683,460,762.59
  5. Step 5: Solve for x
    x = 1,683,460,762.59/38,630.66
  6. Step 6: Final answer
    x = 43,578.36

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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.