Home / 28,070.68-42,069.48-11,411.08

Finding the Fourth Proportional to 28,070.68, 42,069.48 and 11,411.08

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Solution

The fourth proportional to 28,070.68, 42,069.48 and 11,411.08 is: 17,101.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.68 : 42,069.48 = 11,411.08 : x
  2. Step 2: Convert to fraction form
    28,070.68/42,069.48 = 11,411.08/x
  3. Step 3: Cross multiply
    28,070.68x = 42,069.48 × 11,411.08
  4. Step 4: Simplify right side
    28,070.68x = 480,058,201.84
  5. Step 5: Solve for x
    x = 480,058,201.84/28,070.68
  6. Step 6: Final answer
    x = 17,101.77

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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.