Home / 31,534.80-47,237.40-21,685.20

Finding the Fourth Proportional to 31,534.80, 47,237.40 and 21,685.20

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Solution

The fourth proportional to 31,534.80, 47,237.40 and 21,685.20 is: 32,483.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534.80 : 47,237.40 = 21,685.20 : x
  2. Step 2: Convert to fraction form
    31,534.80/47,237.40 = 21,685.20/x
  3. Step 3: Cross multiply
    31,534.80x = 47,237.40 × 21,685.20
  4. Step 4: Simplify right side
    31,534.80x = 1,024,352,466.48
  5. Step 5: Solve for x
    x = 1,024,352,466.48/31,534.80
  6. Step 6: Final answer
    x = 32,483.24

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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.