Home / 28,017.32-42,029.26-9,299

Finding the Fourth Proportional to 28,017.32, 42,029.26 and 9,299

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Solution

The fourth proportional to 28,017.32, 42,029.26 and 9,299 is: 13,949.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.32 : 42,029.26 = 9,299 : x
  2. Step 2: Convert to fraction form
    28,017.32/42,029.26 = 9,299/x
  3. Step 3: Cross multiply
    28,017.32x = 42,029.26 × 9,299
  4. Step 4: Simplify right side
    28,017.32x = 390,830,088.74
  5. Step 5: Solve for x
    x = 390,830,088.74/28,017.32
  6. Step 6: Final answer
    x = 13,949.59

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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.