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Finding the Fourth Proportional to 30,501, 42,088.38 and 17,071.56

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Solution

The fourth proportional to 30,501, 42,088.38 and 17,071.56 is: 23,557.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,501 : 42,088.38 = 17,071.56 : x
  2. Step 2: Convert to fraction form
    30,501/42,088.38 = 17,071.56/x
  3. Step 3: Cross multiply
    30,501x = 42,088.38 × 17,071.56
  4. Step 4: Simplify right side
    30,501x = 718,514,304.47
  5. Step 5: Solve for x
    x = 718,514,304.47/30,501
  6. Step 6: Final answer
    x = 23,557.07

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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.