Home / 29,429.04-40,572.28-19,981.20

Finding the Fourth Proportional to 29,429.04, 40,572.28 and 19,981.20

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Solution

The fourth proportional to 29,429.04, 40,572.28 and 19,981.20 is: 27,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,429.04 : 40,572.28 = 19,981.20 : x
  2. Step 2: Convert to fraction form
    29,429.04/40,572.28 = 19,981.20/x
  3. Step 3: Cross multiply
    29,429.04x = 40,572.28 × 19,981.20
  4. Step 4: Simplify right side
    29,429.04x = 810,682,841.14
  5. Step 5: Solve for x
    x = 810,682,841.14/29,429.04
  6. Step 6: Final answer
    x = 27,547.04

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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.