Home / 27,712.13-38,242.73-15,136.88

Finding the Fourth Proportional to 27,712.13, 38,242.73 and 15,136.88

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Solution

The fourth proportional to 27,712.13, 38,242.73 and 15,136.88 is: 20,888.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,712.13 : 38,242.73 = 15,136.88 : x
  2. Step 2: Convert to fraction form
    27,712.13/38,242.73 = 15,136.88/x
  3. Step 3: Cross multiply
    27,712.13x = 38,242.73 × 15,136.88
  4. Step 4: Simplify right side
    27,712.13x = 578,875,461.51
  5. Step 5: Solve for x
    x = 578,875,461.51/27,712.13
  6. Step 6: Final answer
    x = 20,888.89

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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.