Home / 16,985.65-23,439.75-9,431.74

Finding the Fourth Proportional to 16,985.65, 23,439.75 and 9,431.74

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Solution

The fourth proportional to 16,985.65, 23,439.75 and 9,431.74 is: 13,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,985.65 : 23,439.75 = 9,431.74 : x
  2. Step 2: Convert to fraction form
    16,985.65/23,439.75 = 9,431.74/x
  3. Step 3: Cross multiply
    16,985.65x = 23,439.75 × 9,431.74
  4. Step 4: Simplify right side
    16,985.65x = 221,077,510.47
  5. Step 5: Solve for x
    x = 221,077,510.47/16,985.65
  6. Step 6: Final answer
    x = 13,015.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.