Home / 28,287.17-42,445.48-11,424.35

Finding the Fourth Proportional to 28,287.17, 42,445.48 and 11,424.35

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Solution

The fourth proportional to 28,287.17, 42,445.48 and 11,424.35 is: 17,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.17 : 42,445.48 = 11,424.35 : x
  2. Step 2: Convert to fraction form
    28,287.17/42,445.48 = 11,424.35/x
  3. Step 3: Cross multiply
    28,287.17x = 42,445.48 × 11,424.35
  4. Step 4: Simplify right side
    28,287.17x = 484,911,807.21
  5. Step 5: Solve for x
    x = 484,911,807.21/28,287.17
  6. Step 6: Final answer
    x = 17,142.46

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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.