Home / 30,061.36-45,097.71-9,280

Finding the Fourth Proportional to 30,061.36, 45,097.71 and 9,280

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Solution

The fourth proportional to 30,061.36, 45,097.71 and 9,280 is: 13,921.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,061.36 : 45,097.71 = 9,280 : x
  2. Step 2: Convert to fraction form
    30,061.36/45,097.71 = 9,280/x
  3. Step 3: Cross multiply
    30,061.36x = 45,097.71 × 9,280
  4. Step 4: Simplify right side
    30,061.36x = 418,506,748.80
  5. Step 5: Solve for x
    x = 418,506,748.80/30,061.36
  6. Step 6: Final answer
    x = 13,921.75

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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.