Home / 28,548.81-39,397.41-15,802.88

Finding the Fourth Proportional to 28,548.81, 39,397.41 and 15,802.88

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Solution

The fourth proportional to 28,548.81, 39,397.41 and 15,802.88 is: 21,808.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,548.81 : 39,397.41 = 15,802.88 : x
  2. Step 2: Convert to fraction form
    28,548.81/39,397.41 = 15,802.88/x
  3. Step 3: Cross multiply
    28,548.81x = 39,397.41 × 15,802.88
  4. Step 4: Simplify right side
    28,548.81x = 622,592,345.55
  5. Step 5: Solve for x
    x = 622,592,345.55/28,548.81
  6. Step 6: Final answer
    x = 21,808.00

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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.