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Finding the Fourth Proportional to 30,041.74, 45,018.78 and 16,897.78

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Solution

The fourth proportional to 30,041.74, 45,018.78 and 16,897.78 is: 25,322.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.74 : 45,018.78 = 16,897.78 : x
  2. Step 2: Convert to fraction form
    30,041.74/45,018.78 = 16,897.78/x
  3. Step 3: Cross multiply
    30,041.74x = 45,018.78 × 16,897.78
  4. Step 4: Simplify right side
    30,041.74x = 760,717,440.31
  5. Step 5: Solve for x
    x = 760,717,440.31/30,041.74
  6. Step 6: Final answer
    x = 25,322.02

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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.