Home / 28,528.00-42,781.51-9,802.72

Finding the Fourth Proportional to 28,528.00, 42,781.51 and 9,802.72

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Solution

The fourth proportional to 28,528.00, 42,781.51 and 9,802.72 is: 14,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.00 : 42,781.51 = 9,802.72 : x
  2. Step 2: Convert to fraction form
    28,528.00/42,781.51 = 9,802.72/x
  3. Step 3: Cross multiply
    28,528.00x = 42,781.51 × 9,802.72
  4. Step 4: Simplify right side
    28,528.00x = 419,375,032.25
  5. Step 5: Solve for x
    x = 419,375,032.25/28,528.00
  6. Step 6: Final answer
    x = 14,700.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.