Home / 38,943.54-53,742.10-21,038.54

Finding the Fourth Proportional to 38,943.54, 53,742.10 and 21,038.54

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Solution

The fourth proportional to 38,943.54, 53,742.10 and 21,038.54 is: 29,033.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,943.54 : 53,742.10 = 21,038.54 : x
  2. Step 2: Convert to fraction form
    38,943.54/53,742.10 = 21,038.54/x
  3. Step 3: Cross multiply
    38,943.54x = 53,742.10 × 21,038.54
  4. Step 4: Simplify right side
    38,943.54x = 1,130,655,320.53
  5. Step 5: Solve for x
    x = 1,130,655,320.53/38,943.54
  6. Step 6: Final answer
    x = 29,033.19

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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.