Home / 30,648.24-45,955.35-11,916.72

Finding the Fourth Proportional to 30,648.24, 45,955.35 and 11,916.72

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Solution

The fourth proportional to 30,648.24, 45,955.35 and 11,916.72 is: 17,868.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648.24 : 45,955.35 = 11,916.72 : x
  2. Step 2: Convert to fraction form
    30,648.24/45,955.35 = 11,916.72/x
  3. Step 3: Cross multiply
    30,648.24x = 45,955.35 × 11,916.72
  4. Step 4: Simplify right side
    30,648.24x = 547,637,038.45
  5. Step 5: Solve for x
    x = 547,637,038.45/30,648.24
  6. Step 6: Final answer
    x = 17,868.47

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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.