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Finding the Fourth Proportional to 30,417.35, 45,607.80 and 15,655.10

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Solution

The fourth proportional to 30,417.35, 45,607.80 and 15,655.10 is: 23,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.35 : 45,607.80 = 15,655.10 : x
  2. Step 2: Convert to fraction form
    30,417.35/45,607.80 = 15,655.10/x
  3. Step 3: Cross multiply
    30,417.35x = 45,607.80 × 15,655.10
  4. Step 4: Simplify right side
    30,417.35x = 713,994,669.78
  5. Step 5: Solve for x
    x = 713,994,669.78/30,417.35
  6. Step 6: Final answer
    x = 23,473.27

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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.