Home / 28,498.02-39,341.10-20,018.16

Finding the Fourth Proportional to 28,498.02, 39,341.10 and 20,018.16

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Solution

The fourth proportional to 28,498.02, 39,341.10 and 20,018.16 is: 27,634.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.02 : 39,341.10 = 20,018.16 : x
  2. Step 2: Convert to fraction form
    28,498.02/39,341.10 = 20,018.16/x
  3. Step 3: Cross multiply
    28,498.02x = 39,341.10 × 20,018.16
  4. Step 4: Simplify right side
    28,498.02x = 787,536,434.38
  5. Step 5: Solve for x
    x = 787,536,434.38/28,498.02
  6. Step 6: Final answer
    x = 27,634.78

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Double scale
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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.