Home / 30,791.32-42,492.49-18,041.45

Finding the Fourth Proportional to 30,791.32, 42,492.49 and 18,041.45

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Solution

The fourth proportional to 30,791.32, 42,492.49 and 18,041.45 is: 24,897.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,791.32 : 42,492.49 = 18,041.45 : x
  2. Step 2: Convert to fraction form
    30,791.32/42,492.49 = 18,041.45/x
  3. Step 3: Cross multiply
    30,791.32x = 42,492.49 × 18,041.45
  4. Step 4: Simplify right side
    30,791.32x = 766,626,133.71
  5. Step 5: Solve for x
    x = 766,626,133.71/30,791.32
  6. Step 6: Final answer
    x = 24,897.48

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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.