Home / 28,477.37-42,719.47-11,848.65

Finding the Fourth Proportional to 28,477.37, 42,719.47 and 11,848.65

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Solution

The fourth proportional to 28,477.37, 42,719.47 and 11,848.65 is: 17,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,477.37 : 42,719.47 = 11,848.65 : x
  2. Step 2: Convert to fraction form
    28,477.37/42,719.47 = 11,848.65/x
  3. Step 3: Cross multiply
    28,477.37x = 42,719.47 × 11,848.65
  4. Step 4: Simplify right side
    28,477.37x = 506,168,018.59
  5. Step 5: Solve for x
    x = 506,168,018.59/28,477.37
  6. Step 6: Final answer
    x = 17,774.40

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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.