Home / 27,580.61-38,060.12-15,643.68

Finding the Fourth Proportional to 27,580.61, 38,060.12 and 15,643.68

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Solution

The fourth proportional to 27,580.61, 38,060.12 and 15,643.68 is: 21,587.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,580.61 : 38,060.12 = 15,643.68 : x
  2. Step 2: Convert to fraction form
    27,580.61/38,060.12 = 15,643.68/x
  3. Step 3: Cross multiply
    27,580.61x = 38,060.12 × 15,643.68
  4. Step 4: Simplify right side
    27,580.61x = 595,400,259.82
  5. Step 5: Solve for x
    x = 595,400,259.82/27,580.61
  6. Step 6: Final answer
    x = 21,587.64

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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.