Home / 27,805.32-38,370.96-15,875.64

Finding the Fourth Proportional to 27,805.32, 38,370.96 and 15,875.64

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Solution

The fourth proportional to 27,805.32, 38,370.96 and 15,875.64 is: 21,908.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,805.32 : 38,370.96 = 15,875.64 : x
  2. Step 2: Convert to fraction form
    27,805.32/38,370.96 = 15,875.64/x
  3. Step 3: Cross multiply
    27,805.32x = 38,370.96 × 15,875.64
  4. Step 4: Simplify right side
    27,805.32x = 609,163,547.41
  5. Step 5: Solve for x
    x = 609,163,547.41/27,805.32
  6. Step 6: Final answer
    x = 21,908.17

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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.