Home / 38,681.20-53,386.04-21,692.31

Finding the Fourth Proportional to 38,681.20, 53,386.04 and 21,692.31

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Solution

The fourth proportional to 38,681.20, 53,386.04 and 21,692.31 is: 29,938.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,681.20 : 53,386.04 = 21,692.31 : x
  2. Step 2: Convert to fraction form
    38,681.20/53,386.04 = 21,692.31/x
  3. Step 3: Cross multiply
    38,681.20x = 53,386.04 × 21,692.31
  4. Step 4: Simplify right side
    38,681.20x = 1,158,066,261.37
  5. Step 5: Solve for x
    x = 1,158,066,261.37/38,681.20
  6. Step 6: Final answer
    x = 29,938.74

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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.