Home / 30,862.12-42,577.99-22,815.10

Finding the Fourth Proportional to 30,862.12, 42,577.99 and 22,815.10

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Solution

The fourth proportional to 30,862.12, 42,577.99 and 22,815.10 is: 31,476.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,862.12 : 42,577.99 = 22,815.10 : x
  2. Step 2: Convert to fraction form
    30,862.12/42,577.99 = 22,815.10/x
  3. Step 3: Cross multiply
    30,862.12x = 42,577.99 × 22,815.10
  4. Step 4: Simplify right side
    30,862.12x = 971,421,099.65
  5. Step 5: Solve for x
    x = 971,421,099.65/30,862.12
  6. Step 6: Final answer
    x = 31,476.16

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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.