Home / 25,411.10-35,068.62-15,339.40

Finding the Fourth Proportional to 25,411.10, 35,068.62 and 15,339.40

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Solution

The fourth proportional to 25,411.10, 35,068.62 and 15,339.40 is: 21,169.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,411.10 : 35,068.62 = 15,339.40 : x
  2. Step 2: Convert to fraction form
    25,411.10/35,068.62 = 15,339.40/x
  3. Step 3: Cross multiply
    25,411.10x = 35,068.62 × 15,339.40
  4. Step 4: Simplify right side
    25,411.10x = 537,931,589.63
  5. Step 5: Solve for x
    x = 537,931,589.63/25,411.10
  6. Step 6: Final answer
    x = 21,169.16

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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.