Home / 39,035.46-53,868.96-21,130.41

Finding the Fourth Proportional to 39,035.46, 53,868.96 and 21,130.41

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Solution

The fourth proportional to 39,035.46, 53,868.96 and 21,130.41 is: 29,159.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,035.46 : 53,868.96 = 21,130.41 : x
  2. Step 2: Convert to fraction form
    39,035.46/53,868.96 = 21,130.41/x
  3. Step 3: Cross multiply
    39,035.46x = 53,868.96 × 21,130.41
  4. Step 4: Simplify right side
    39,035.46x = 1,138,272,941.73
  5. Step 5: Solve for x
    x = 1,138,272,941.73/39,035.46
  6. Step 6: Final answer
    x = 29,159.98

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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.