Home / 22,303.40-30,776.47-12,875.00

Finding the Fourth Proportional to 22,303.40, 30,776.47 and 12,875.00

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Solution

The fourth proportional to 22,303.40, 30,776.47 and 12,875.00 is: 17,766.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,303.40 : 30,776.47 = 12,875.00 : x
  2. Step 2: Convert to fraction form
    22,303.40/30,776.47 = 12,875.00/x
  3. Step 3: Cross multiply
    22,303.40x = 30,776.47 × 12,875.00
  4. Step 4: Simplify right side
    22,303.40x = 396,246,865.18
  5. Step 5: Solve for x
    x = 396,246,865.18/22,303.40
  6. Step 6: Final answer
    x = 17,766.21

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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.