Home / 38,434.04-53,038.50-21,667.04

Finding the Fourth Proportional to 38,434.04, 53,038.50 and 21,667.04

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Solution

The fourth proportional to 38,434.04, 53,038.50 and 21,667.04 is: 29,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.04 : 53,038.50 = 21,667.04 : x
  2. Step 2: Convert to fraction form
    38,434.04/53,038.50 = 21,667.04/x
  3. Step 3: Cross multiply
    38,434.04x = 53,038.50 × 21,667.04
  4. Step 4: Simplify right side
    38,434.04x = 1,149,187,301.04
  5. Step 5: Solve for x
    x = 1,149,187,301.04/38,434.04
  6. Step 6: Final answer
    x = 29,900.25

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Half scale
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Double scale
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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.