Home / 28,030.09-42,044.22-11,385.20

Finding the Fourth Proportional to 28,030.09, 42,044.22 and 11,385.20

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Solution

The fourth proportional to 28,030.09, 42,044.22 and 11,385.20 is: 17,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.09 : 42,044.22 = 11,385.20 : x
  2. Step 2: Convert to fraction form
    28,030.09/42,044.22 = 11,385.20/x
  3. Step 3: Cross multiply
    28,030.09x = 42,044.22 × 11,385.20
  4. Step 4: Simplify right side
    28,030.09x = 478,681,643.32
  5. Step 5: Solve for x
    x = 478,681,643.32/28,030.09
  6. Step 6: Final answer
    x = 17,077.42

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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.