Home / 42,721.40-64,062.90-16,417.40

Finding the Fourth Proportional to 42,721.40, 64,062.90 and 16,417.40

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Solution

The fourth proportional to 42,721.40, 64,062.90 and 16,417.40 is: 24,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,721.40 : 64,062.90 = 16,417.40 : x
  2. Step 2: Convert to fraction form
    42,721.40/64,062.90 = 16,417.40/x
  3. Step 3: Cross multiply
    42,721.40x = 64,062.90 × 16,417.40
  4. Step 4: Simplify right side
    42,721.40x = 1,051,746,254.46
  5. Step 5: Solve for x
    x = 1,051,746,254.46/42,721.40
  6. Step 6: Final answer
    x = 24,618.72

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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.