Home / 19,345.12-29,013.06-9,980.32

Finding the Fourth Proportional to 19,345.12, 29,013.06 and 9,980.32

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Solution

The fourth proportional to 19,345.12, 29,013.06 and 9,980.32 is: 14,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.12 : 29,013.06 = 9,980.32 : x
  2. Step 2: Convert to fraction form
    19,345.12/29,013.06 = 9,980.32/x
  3. Step 3: Cross multiply
    19,345.12x = 29,013.06 × 9,980.32
  4. Step 4: Simplify right side
    19,345.12x = 289,559,622.98
  5. Step 5: Solve for x
    x = 289,559,622.98/19,345.12
  6. Step 6: Final answer
    x = 14,968.10

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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.