Home / 31,482.61-47,178.59-18,155.07

Finding the Fourth Proportional to 31,482.61, 47,178.59 and 18,155.07

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Solution

The fourth proportional to 31,482.61, 47,178.59 and 18,155.07 is: 27,206.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,482.61 : 47,178.59 = 18,155.07 : x
  2. Step 2: Convert to fraction form
    31,482.61/47,178.59 = 18,155.07/x
  3. Step 3: Cross multiply
    31,482.61x = 47,178.59 × 18,155.07
  4. Step 4: Simplify right side
    31,482.61x = 856,530,513.18
  5. Step 5: Solve for x
    x = 856,530,513.18/31,482.61
  6. Step 6: Final answer
    x = 27,206.47

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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.