Home / 47,087.70-70,642.40-13,810.32

Finding the Fourth Proportional to 47,087.70, 70,642.40 and 13,810.32

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Solution

The fourth proportional to 47,087.70, 70,642.40 and 13,810.32 is: 20,718.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,087.70 : 70,642.40 = 13,810.32 : x
  2. Step 2: Convert to fraction form
    47,087.70/70,642.40 = 13,810.32/x
  3. Step 3: Cross multiply
    47,087.70x = 70,642.40 × 13,810.32
  4. Step 4: Simplify right side
    47,087.70x = 975,594,149.57
  5. Step 5: Solve for x
    x = 975,594,149.57/47,087.70
  6. Step 6: Final answer
    x = 20,718.66

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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.