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Finding the Fourth Proportional to 30,417.93, 45,630.54 and 11,697.21

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Solution

The fourth proportional to 30,417.93, 45,630.54 and 11,697.21 is: 17,547.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.93 : 45,630.54 = 11,697.21 : x
  2. Step 2: Convert to fraction form
    30,417.93/45,630.54 = 11,697.21/x
  3. Step 3: Cross multiply
    30,417.93x = 45,630.54 × 11,697.21
  4. Step 4: Simplify right side
    30,417.93x = 533,750,008.79
  5. Step 5: Solve for x
    x = 533,750,008.79/30,417.93
  6. Step 6: Final answer
    x = 17,547.22

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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.