Home / 39,048.10-53,886.53-21,143.12

Finding the Fourth Proportional to 39,048.10, 53,886.53 and 21,143.12

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Solution

The fourth proportional to 39,048.10, 53,886.53 and 21,143.12 is: 29,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,048.10 : 53,886.53 = 21,143.12 : x
  2. Step 2: Convert to fraction form
    39,048.10/53,886.53 = 21,143.12/x
  3. Step 3: Cross multiply
    39,048.10x = 53,886.53 × 21,143.12
  4. Step 4: Simplify right side
    39,048.10x = 1,139,329,153.60
  5. Step 5: Solve for x
    x = 1,139,329,153.60/39,048.10
  6. Step 6: Final answer
    x = 29,177.58

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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.