Home / 27,705.96-38,235.60-15,130.62

Finding the Fourth Proportional to 27,705.96, 38,235.60 and 15,130.62

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Solution

The fourth proportional to 27,705.96, 38,235.60 and 15,130.62 is: 20,881.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,705.96 : 38,235.60 = 15,130.62 : x
  2. Step 2: Convert to fraction form
    27,705.96/38,235.60 = 15,130.62/x
  3. Step 3: Cross multiply
    27,705.96x = 38,235.60 × 15,130.62
  4. Step 4: Simplify right side
    27,705.96x = 578,528,334.07
  5. Step 5: Solve for x
    x = 578,528,334.07/27,705.96
  6. Step 6: Final answer
    x = 20,881.01

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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.