Home / 38,681.50-58,023.06-12,386.17

Finding the Fourth Proportional to 38,681.50, 58,023.06 and 12,386.17

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Solution

The fourth proportional to 38,681.50, 58,023.06 and 12,386.17 is: 18,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,681.50 : 58,023.06 = 12,386.17 : x
  2. Step 2: Convert to fraction form
    38,681.50/58,023.06 = 12,386.17/x
  3. Step 3: Cross multiply
    38,681.50x = 58,023.06 × 12,386.17
  4. Step 4: Simplify right side
    38,681.50x = 718,683,254.45
  5. Step 5: Solve for x
    x = 718,683,254.45/38,681.50
  6. Step 6: Final answer
    x = 18,579.51

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1.5x scale

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.