Home / 20,897.16-31,347.80-6,106.24

Finding the Fourth Proportional to 20,897.16, 31,347.80 and 6,106.24

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Solution

The fourth proportional to 20,897.16, 31,347.80 and 6,106.24 is: 9,159.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.16 : 31,347.80 = 6,106.24 : x
  2. Step 2: Convert to fraction form
    20,897.16/31,347.80 = 6,106.24/x
  3. Step 3: Cross multiply
    20,897.16x = 31,347.80 × 6,106.24
  4. Step 4: Simplify right side
    20,897.16x = 191,417,190.27
  5. Step 5: Solve for x
    x = 191,417,190.27/20,897.16
  6. Step 6: Final answer
    x = 9,159.96

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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.