Home / 21,556,348.80-32,334,523.20-20,280,890.40

Finding the Fourth Proportional to 21,556,348.80, 32,334,523.20 and 20,280,890.40

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Solution

The fourth proportional to 21,556,348.80, 32,334,523.20 and 20,280,890.40 is: 30,421,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556,348.80 : 32,334,523.20 = 20,280,890.40 : x
  2. Step 2: Convert to fraction form
    21,556,348.80/32,334,523.20 = 20,280,890.40/x
  3. Step 3: Cross multiply
    21,556,348.80x = 32,334,523.20 × 20,280,890.40
  4. Step 4: Simplify right side
    21,556,348.80x = 655,772,921,155,457.25
  5. Step 5: Solve for x
    x = 655,772,921,155,457.25/21,556,348.80
  6. Step 6: Final answer
    x = 30,421,335.60

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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.