Home / 26,681.16-39,989.93-12,430.52

Finding the Fourth Proportional to 26,681.16, 39,989.93 and 12,430.52

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Solution

The fourth proportional to 26,681.16, 39,989.93 and 12,430.52 is: 18,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,681.16 : 39,989.93 = 12,430.52 : x
  2. Step 2: Convert to fraction form
    26,681.16/39,989.93 = 12,430.52/x
  3. Step 3: Cross multiply
    26,681.16x = 39,989.93 × 12,430.52
  4. Step 4: Simplify right side
    26,681.16x = 497,095,624.66
  5. Step 5: Solve for x
    x = 497,095,624.66/26,681.16
  6. Step 6: Final answer
    x = 18,630.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.