Home / 31,405.08-47,114.12-10,346.40

Finding the Fourth Proportional to 31,405.08, 47,114.12 and 10,346.40

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Solution

The fourth proportional to 31,405.08, 47,114.12 and 10,346.40 is: 15,521.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405.08 : 47,114.12 = 10,346.40 : x
  2. Step 2: Convert to fraction form
    31,405.08/47,114.12 = 10,346.40/x
  3. Step 3: Cross multiply
    31,405.08x = 47,114.12 × 10,346.40
  4. Step 4: Simplify right side
    31,405.08x = 487,461,531.17
  5. Step 5: Solve for x
    x = 487,461,531.17/31,405.08
  6. Step 6: Final answer
    x = 15,521.74

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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.