Home / 21,492,085.80-32,238,128.70-13,839,335.40

Finding the Fourth Proportional to 21,492,085.80, 32,238,128.70 and 13,839,335.40

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Solution

The fourth proportional to 21,492,085.80, 32,238,128.70 and 13,839,335.40 is: 20,759,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492,085.80 : 32,238,128.70 = 13,839,335.40 : x
  2. Step 2: Convert to fraction form
    21,492,085.80/32,238,128.70 = 13,839,335.40/x
  3. Step 3: Cross multiply
    21,492,085.80x = 32,238,128.70 × 13,839,335.40
  4. Step 4: Simplify right side
    21,492,085.80x = 446,154,275,747,666
  5. Step 5: Solve for x
    x = 446,154,275,747,666/21,492,085.80
  6. Step 6: Final answer
    x = 20,759,003.10

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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.