Home / 27,712.15-38,242.52-15,136.63

Finding the Fourth Proportional to 27,712.15, 38,242.52 and 15,136.63

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Solution

The fourth proportional to 27,712.15, 38,242.52 and 15,136.63 is: 20,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,712.15 : 38,242.52 = 15,136.63 : x
  2. Step 2: Convert to fraction form
    27,712.15/38,242.52 = 15,136.63/x
  3. Step 3: Cross multiply
    27,712.15x = 38,242.52 × 15,136.63
  4. Step 4: Simplify right side
    27,712.15x = 578,862,875.51
  5. Step 5: Solve for x
    x = 578,862,875.51/27,712.15
  6. Step 6: Final answer
    x = 20,888.41

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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.