Home / 21,013,800.30-31,520,700.45-17,426,573.55

Finding the Fourth Proportional to 21,013,800.30, 31,520,700.45 and 17,426,573.55

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Solution

The fourth proportional to 21,013,800.30, 31,520,700.45 and 17,426,573.55 is: 26,139,860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013,800.30 : 31,520,700.45 = 17,426,573.55 : x
  2. Step 2: Convert to fraction form
    21,013,800.30/31,520,700.45 = 17,426,573.55/x
  3. Step 3: Cross multiply
    21,013,800.30x = 31,520,700.45 × 17,426,573.55
  4. Step 4: Simplify right side
    21,013,800.30x = 549,297,804,739,443.12
  5. Step 5: Solve for x
    x = 549,297,804,739,443.12/21,013,800.30
  6. Step 6: Final answer
    x = 26,139,860.33

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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.