Home / 48,399.48-72,618-18,838.08

Finding the Fourth Proportional to 48,399.48, 72,618 and 18,838.08

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Solution

The fourth proportional to 48,399.48, 72,618 and 18,838.08 is: 28,264.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,399.48 : 72,618 = 18,838.08 : x
  2. Step 2: Convert to fraction form
    48,399.48/72,618 = 18,838.08/x
  3. Step 3: Cross multiply
    48,399.48x = 72,618 × 18,838.08
  4. Step 4: Simplify right side
    48,399.48x = 1,367,983,693.44
  5. Step 5: Solve for x
    x = 1,367,983,693.44/48,399.48
  6. Step 6: Final answer
    x = 28,264.43

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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.