Home / 22,985.93-31,718.63-12,913.58

Finding the Fourth Proportional to 22,985.93, 31,718.63 and 12,913.58

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Solution

The fourth proportional to 22,985.93, 31,718.63 and 12,913.58 is: 17,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,985.93 : 31,718.63 = 12,913.58 : x
  2. Step 2: Convert to fraction form
    22,985.93/31,718.63 = 12,913.58/x
  3. Step 3: Cross multiply
    22,985.93x = 31,718.63 × 12,913.58
  4. Step 4: Simplify right side
    22,985.93x = 409,600,842.83
  5. Step 5: Solve for x
    x = 409,600,842.83/22,985.93
  6. Step 6: Final answer
    x = 17,819.64

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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.