Home / 15,966.90-24,030-12,038.40

Finding the Fourth Proportional to 15,966.90, 24,030 and 12,038.40

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Solution

The fourth proportional to 15,966.90, 24,030 and 12,038.40 is: 18,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,966.90 : 24,030 = 12,038.40 : x
  2. Step 2: Convert to fraction form
    15,966.90/24,030 = 12,038.40/x
  3. Step 3: Cross multiply
    15,966.90x = 24,030 × 12,038.40
  4. Step 4: Simplify right side
    15,966.90x = 289,282,752
  5. Step 5: Solve for x
    x = 289,282,752/15,966.90
  6. Step 6: Final answer
    x = 18,117.65

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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.