Home / 22,688.66-31,307.95-12,615.47

Finding the Fourth Proportional to 22,688.66, 31,307.95 and 12,615.47

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Solution

The fourth proportional to 22,688.66, 31,307.95 and 12,615.47 is: 17,408.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,688.66 : 31,307.95 = 12,615.47 : x
  2. Step 2: Convert to fraction form
    22,688.66/31,307.95 = 12,615.47/x
  3. Step 3: Cross multiply
    22,688.66x = 31,307.95 × 12,615.47
  4. Step 4: Simplify right side
    22,688.66x = 394,964,542.06
  5. Step 5: Solve for x
    x = 394,964,542.06/22,688.66
  6. Step 6: Final answer
    x = 17,408.02

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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.