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Finding the Fourth Proportional to 30,295.65, 45,346.28 and 21,547.65

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Solution

The fourth proportional to 30,295.65, 45,346.28 and 21,547.65 is: 32,252.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,295.65 : 45,346.28 = 21,547.65 : x
  2. Step 2: Convert to fraction form
    30,295.65/45,346.28 = 21,547.65/x
  3. Step 3: Cross multiply
    30,295.65x = 45,346.28 × 21,547.65
  4. Step 4: Simplify right side
    30,295.65x = 977,105,662.50
  5. Step 5: Solve for x
    x = 977,105,662.50/30,295.65
  6. Step 6: Final answer
    x = 32,252.34

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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.