Home / 31,703.68-47,528.64-12,730.24

Finding the Fourth Proportional to 31,703.68, 47,528.64 and 12,730.24

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Solution

The fourth proportional to 31,703.68, 47,528.64 and 12,730.24 is: 19,084.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,703.68 : 47,528.64 = 12,730.24 : x
  2. Step 2: Convert to fraction form
    31,703.68/47,528.64 = 12,730.24/x
  3. Step 3: Cross multiply
    31,703.68x = 47,528.64 × 12,730.24
  4. Step 4: Simplify right side
    31,703.68x = 605,050,994.07
  5. Step 5: Solve for x
    x = 605,050,994.07/31,703.68
  6. Step 6: Final answer
    x = 19,084.57

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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.