Home / 27,727.95-38,271.38-15,798.32

Finding the Fourth Proportional to 27,727.95, 38,271.38 and 15,798.32

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Solution

The fourth proportional to 27,727.95, 38,271.38 and 15,798.32 is: 21,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,727.95 : 38,271.38 = 15,798.32 : x
  2. Step 2: Convert to fraction form
    27,727.95/38,271.38 = 15,798.32/x
  3. Step 3: Cross multiply
    27,727.95x = 38,271.38 × 15,798.32
  4. Step 4: Simplify right side
    27,727.95x = 604,623,381.25
  5. Step 5: Solve for x
    x = 604,623,381.25/27,727.95
  6. Step 6: Final answer
    x = 21,805.55

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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.