Home / 47,000.16-70,518.69-20,686.46

Finding the Fourth Proportional to 47,000.16, 70,518.69 and 20,686.46

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Solution

The fourth proportional to 47,000.16, 70,518.69 and 20,686.46 is: 31,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,000.16 : 70,518.69 = 20,686.46 : x
  2. Step 2: Convert to fraction form
    47,000.16/70,518.69 = 20,686.46/x
  3. Step 3: Cross multiply
    47,000.16x = 70,518.69 × 20,686.46
  4. Step 4: Simplify right side
    47,000.16x = 1,458,781,707.34
  5. Step 5: Solve for x
    x = 1,458,781,707.34/47,000.16
  6. Step 6: Final answer
    x = 31,037.80

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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.