Home / 51,530.17-77,282.81-21,528.20

Finding the Fourth Proportional to 51,530.17, 77,282.81 and 21,528.20

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Solution

The fourth proportional to 51,530.17, 77,282.81 and 21,528.20 is: 32,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,530.17 : 77,282.81 = 21,528.20 : x
  2. Step 2: Convert to fraction form
    51,530.17/77,282.81 = 21,528.20/x
  3. Step 3: Cross multiply
    51,530.17x = 77,282.81 × 21,528.20
  4. Step 4: Simplify right side
    51,530.17x = 1,663,759,457.65
  5. Step 5: Solve for x
    x = 1,663,759,457.65/51,530.17
  6. Step 6: Final answer
    x = 32,287.09

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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.