Home / 22,312.18-30,788.53-13,359.45

Finding the Fourth Proportional to 22,312.18, 30,788.53 and 13,359.45

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Solution

The fourth proportional to 22,312.18, 30,788.53 and 13,359.45 is: 18,434.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.18 : 30,788.53 = 13,359.45 : x
  2. Step 2: Convert to fraction form
    22,312.18/30,788.53 = 13,359.45/x
  3. Step 3: Cross multiply
    22,312.18x = 30,788.53 × 13,359.45
  4. Step 4: Simplify right side
    22,312.18x = 411,317,827.11
  5. Step 5: Solve for x
    x = 411,317,827.11/22,312.18
  6. Step 6: Final answer
    x = 18,434.68

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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.