Home / 38,421.19-53,022.18-21,425.27

Finding the Fourth Proportional to 38,421.19, 53,022.18 and 21,425.27

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Solution

The fourth proportional to 38,421.19, 53,022.18 and 21,425.27 is: 29,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421.19 : 53,022.18 = 21,425.27 : x
  2. Step 2: Convert to fraction form
    38,421.19/53,022.18 = 21,425.27/x
  3. Step 3: Cross multiply
    38,421.19x = 53,022.18 × 21,425.27
  4. Step 4: Simplify right side
    38,421.19x = 1,136,014,522.49
  5. Step 5: Solve for x
    x = 1,136,014,522.49/38,421.19
  6. Step 6: Final answer
    x = 29,567.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.