Home / 27,869.34-38,430.38-21,496.97

Finding the Fourth Proportional to 27,869.34, 38,430.38 and 21,496.97

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Solution

The fourth proportional to 27,869.34, 38,430.38 and 21,496.97 is: 29,643.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,869.34 : 38,430.38 = 21,496.97 : x
  2. Step 2: Convert to fraction form
    27,869.34/38,430.38 = 21,496.97/x
  3. Step 3: Cross multiply
    27,869.34x = 38,430.38 × 21,496.97
  4. Step 4: Simplify right side
    27,869.34x = 826,136,875.77
  5. Step 5: Solve for x
    x = 826,136,875.77/27,869.34
  6. Step 6: Final answer
    x = 29,643.21

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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.