Home / 30,534.61-42,125.63-19,042.76

Finding the Fourth Proportional to 30,534.61, 42,125.63 and 19,042.76

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Solution

The fourth proportional to 30,534.61, 42,125.63 and 19,042.76 is: 26,271.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.61 : 42,125.63 = 19,042.76 : x
  2. Step 2: Convert to fraction form
    30,534.61/42,125.63 = 19,042.76/x
  3. Step 3: Cross multiply
    30,534.61x = 42,125.63 × 19,042.76
  4. Step 4: Simplify right side
    30,534.61x = 802,188,261.94
  5. Step 5: Solve for x
    x = 802,188,261.94/30,534.61
  6. Step 6: Final answer
    x = 26,271.44

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Half scale
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Double scale
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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.