Home / 38,938.40-53,734.96-21,033.40

Finding the Fourth Proportional to 38,938.40, 53,734.96 and 21,033.40

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Solution

The fourth proportional to 38,938.40, 53,734.96 and 21,033.40 is: 29,026.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,938.40 : 53,734.96 = 21,033.40 : x
  2. Step 2: Convert to fraction form
    38,938.40/53,734.96 = 21,033.40/x
  3. Step 3: Cross multiply
    38,938.40x = 53,734.96 × 21,033.40
  4. Step 4: Simplify right side
    38,938.40x = 1,130,228,681.31
  5. Step 5: Solve for x
    x = 1,130,228,681.31/38,938.40
  6. Step 6: Final answer
    x = 29,026.07

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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.