Home / 21,392.64-32,088.42-5,810.40

Finding the Fourth Proportional to 21,392.64, 32,088.42 and 5,810.40

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Solution

The fourth proportional to 21,392.64, 32,088.42 and 5,810.40 is: 8,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,392.64 : 32,088.42 = 5,810.40 : x
  2. Step 2: Convert to fraction form
    21,392.64/32,088.42 = 5,810.40/x
  3. Step 3: Cross multiply
    21,392.64x = 32,088.42 × 5,810.40
  4. Step 4: Simplify right side
    21,392.64x = 186,446,555.57
  5. Step 5: Solve for x
    x = 186,446,555.57/21,392.64
  6. Step 6: Final answer
    x = 8,715.45

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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.