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Finding the Fourth Proportional to 30,045.28, 45,070.08 and 9,266.08

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Solution

The fourth proportional to 30,045.28, 45,070.08 and 9,266.08 is: 13,899.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,045.28 : 45,070.08 = 9,266.08 : x
  2. Step 2: Convert to fraction form
    30,045.28/45,070.08 = 9,266.08/x
  3. Step 3: Cross multiply
    30,045.28x = 45,070.08 × 9,266.08
  4. Step 4: Simplify right side
    30,045.28x = 417,622,966.89
  5. Step 5: Solve for x
    x = 417,622,966.89/30,045.28
  6. Step 6: Final answer
    x = 13,899.79

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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.