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Finding the Fourth Proportional to 30,014.81, 45,024.49 and 8,953.20

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Solution

The fourth proportional to 30,014.81, 45,024.49 and 8,953.20 is: 13,430.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,014.81 : 45,024.49 = 8,953.20 : x
  2. Step 2: Convert to fraction form
    30,014.81/45,024.49 = 8,953.20/x
  3. Step 3: Cross multiply
    30,014.81x = 45,024.49 × 8,953.20
  4. Step 4: Simplify right side
    30,014.81x = 403,113,275.06
  5. Step 5: Solve for x
    x = 403,113,275.06/30,014.81
  6. Step 6: Final answer
    x = 13,430.48

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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.