Home / 23,026.95-31,776.87-12,955.40

Finding the Fourth Proportional to 23,026.95, 31,776.87 and 12,955.40

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Solution

The fourth proportional to 23,026.95, 31,776.87 and 12,955.40 is: 17,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,026.95 : 31,776.87 = 12,955.40 : x
  2. Step 2: Convert to fraction form
    23,026.95/31,776.87 = 12,955.40/x
  3. Step 3: Cross multiply
    23,026.95x = 31,776.87 × 12,955.40
  4. Step 4: Simplify right side
    23,026.95x = 411,681,902.71
  5. Step 5: Solve for x
    x = 411,681,902.71/23,026.95
  6. Step 6: Final answer
    x = 17,878.26

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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.