Home / 15,143.81-22,602.32-14,147.36

Finding the Fourth Proportional to 15,143.81, 22,602.32 and 14,147.36

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Solution

The fourth proportional to 15,143.81, 22,602.32 and 14,147.36 is: 21,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.81 : 22,602.32 = 14,147.36 : x
  2. Step 2: Convert to fraction form
    15,143.81/22,602.32 = 14,147.36/x
  3. Step 3: Cross multiply
    15,143.81x = 22,602.32 × 14,147.36
  4. Step 4: Simplify right side
    15,143.81x = 319,763,155.61
  5. Step 5: Solve for x
    x = 319,763,155.61/15,143.81
  6. Step 6: Final answer
    x = 21,115.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.